641531520

素因数分解:

$2^7\times 3^2\times 5^1\times 7^2\times {\mathrm{2273}}^1$

素因数の和:2312

約数の個数: 288

約数和(自身を含む): 2578102020

約数和(自身を除く): 1936570500

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 128, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 384, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 640, 672, 720, 735, 784, 840, 882, 896, 960, 980, 1008, 1120, 1152, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1920, 1960, 2016, 2205, 2240, 2273, 2352, 2520, 2688, 2880, 2940, 3136, 3360, 3528, 3920, 4032, 4410, 4480, 4546, 4704, 5040, 5760, 5880, 6272, 6720, 6819, 7056, 7840, 8064, 8820, 9092, 9408, 10080, 11365, 11760, 13440, 13638, 14112, 15680, 15911, 17640, 18184, 18816, 20160, 20457, 22730, 23520, 27276, 28224, 31360, 31822, 34095, 35280, 36368, 40320, 40914, 45460, 47040, 47733, 54552, 56448, 63644, 68190, 70560, 72736, 79555, 81828, 90920, 94080, 95466, 102285, 109104, 111377, 127288, 136380, 141120, 143199, 145472, 159110, 163656, 181840, 190932, 204570, 218208, 222754, 238665, 254576, 272760, 282240, 286398, 290944, 318220, 327312, 334131, 363680, 381864, 409140, 436416, 445508, 477330, 509152, 545520, 556885, 572796, 636440, 654624, 668262, 715995, 727360, 763728, 818280, 872832, 891016, 954660, 1002393, 1018304, 1091040, 1113770, 1145592, 1272880, 1309248, 1336524, 1431990, 1454720, 1527456, 1636560, 1670655, 1782032, 1909320, 2004786, 2036608, 2182080, 2227540, 2291184, 2545760, 2618496, 2673048, 2863980, 3054912, 3273120, 3341310, 3564064, 3818640, 4009572, 4364160, 4455080, 4582368, 5011965, 5091520, 5346096, 5727960, 6109824, 6546240, 6682620, 7128128, 7637280, 8019144, 8910160, 9164736, 10023930, 10183040, 10692192, 11455920, 13092480, 13365240, 14256256, 15274560, 16038288, 17820320, 18329472, 20047860, 21384384, 22911840, 26730480, 30549120, 32076576, 35640640, 40095720, 42768768, 45823680, 53460960, 64153152, 71281280, 80191440, 91647360, 106921920, 128306304, 160382880, 213843840, 320765760, 641531520]

約数ペア:

[(1, 641531520), (2, 320765760), (3, 213843840), (4, 160382880), (5, 128306304), (6, 106921920), (7, 91647360), (8, 80191440), (9, 71281280), (10, 64153152), (12, 53460960), (14, 45823680), (15, 42768768), (16, 40095720), (18, 35640640), (20, 32076576), (21, 30549120), (24, 26730480), (28, 22911840), (30, 21384384), (32, 20047860), (35, 18329472), (36, 17820320), (40, 16038288), (42, 15274560), (45, 14256256), (48, 13365240), (49, 13092480), (56, 11455920), (60, 10692192), (63, 10183040), (64, 10023930), (70, 9164736), (72, 8910160), (80, 8019144), (84, 7637280), (90, 7128128), (96, 6682620), (98, 6546240), (105, 6109824), (112, 5727960), (120, 5346096), (126, 5091520), (128, 5011965), (140, 4582368), (144, 4455080), (147, 4364160), (160, 4009572), (168, 3818640), (180, 3564064), (192, 3341310), (196, 3273120), (210, 3054912), (224, 2863980), (240, 2673048), (245, 2618496), (252, 2545760), (280, 2291184), (288, 2227540), (294, 2182080), (315, 2036608), (320, 2004786), (336, 1909320), (360, 1782032), (384, 1670655), (392, 1636560), (420, 1527456), (441, 1454720), (448, 1431990), (480, 1336524), (490, 1309248), (504, 1272880), (560, 1145592), (576, 1113770), (588, 1091040), (630, 1018304), (640, 1002393), (672, 954660), (720, 891016), (735, 872832), (784, 818280), (840, 763728), (882, 727360), (896, 715995), (960, 668262), (980, 654624), (1008, 636440), (1120, 572796), (1152, 556885), (1176, 545520), (1260, 509152), (1344, 477330), (1440, 445508), (1470, 436416), (1568, 409140), (1680, 381864), (1764, 363680), (1920, 334131), (1960, 327312), (2016, 318220), (2205, 290944), (2240, 286398), (2273, 282240), (2352, 272760), (2520, 254576), (2688, 238665), (2880, 222754), (2940, 218208), (3136, 204570), (3360, 190932), (3528, 181840), (3920, 163656), (4032, 159110), (4410, 145472), (4480, 143199), (4546, 141120), (4704, 136380), (5040, 127288), (5760, 111377), (5880, 109104), (6272, 102285), (6720, 95466), (6819, 94080), (7056, 90920), (7840, 81828), (8064, 79555), (8820, 72736), (9092, 70560), (9408, 68190), (10080, 63644), (11365, 56448), (11760, 54552), (13440, 47733), (13638, 47040), (14112, 45460), (15680, 40914), (15911, 40320), (17640, 36368), (18184, 35280), (18816, 34095), (20160, 31822), (20457, 31360), (22730, 28224), (23520, 27276)]