639581040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6679}}^1$

素因数の和:6724

約数の個数: 240

約数和(自身を含む): 2584358400

約数和(自身を除く): 1944777360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 48, 56, 57, 60, 63, 70, 72, 76, 80, 84, 90, 95, 105, 112, 114, 120, 126, 133, 140, 144, 152, 168, 171, 180, 190, 210, 228, 240, 252, 266, 280, 285, 304, 315, 336, 342, 360, 380, 399, 420, 456, 504, 532, 560, 570, 630, 665, 684, 720, 760, 798, 840, 855, 912, 1008, 1064, 1140, 1197, 1260, 1330, 1368, 1520, 1596, 1680, 1710, 1995, 2128, 2280, 2394, 2520, 2660, 2736, 3192, 3420, 3990, 4560, 4788, 5040, 5320, 5985, 6384, 6679, 6840, 7980, 9576, 10640, 11970, 13358, 13680, 15960, 19152, 20037, 23940, 26716, 31920, 33395, 40074, 46753, 47880, 53432, 60111, 66790, 80148, 93506, 95760, 100185, 106864, 120222, 126901, 133580, 140259, 160296, 187012, 200370, 233765, 240444, 253802, 267160, 280518, 300555, 320592, 374024, 380703, 400740, 420777, 467530, 480888, 507604, 534320, 561036, 601110, 634505, 701295, 748048, 761406, 801480, 841554, 888307, 935060, 961776, 1015208, 1122072, 1142109, 1202220, 1269010, 1402590, 1522812, 1602960, 1683108, 1776614, 1870120, 1903515, 2030416, 2103885, 2244144, 2284218, 2404440, 2538020, 2664921, 2805180, 3045624, 3366216, 3553228, 3740240, 3807030, 4207770, 4441535, 4568436, 4808880, 5076040, 5329842, 5610360, 5710545, 6091248, 6732432, 7106456, 7614060, 7994763, 8415540, 8883070, 9136872, 10152080, 10659684, 11220720, 11421090, 13324605, 14212912, 15228120, 15989526, 16831080, 17766140, 18273744, 21319368, 22842180, 26649210, 30456240, 31979052, 33662160, 35532280, 39973815, 42638736, 45684360, 53298420, 63958104, 71064560, 79947630, 91368720, 106596840, 127916208, 159895260, 213193680, 319790520, 639581040]

約数ペア:

[(1, 639581040), (2, 319790520), (3, 213193680), (4, 159895260), (5, 127916208), (6, 106596840), (7, 91368720), (8, 79947630), (9, 71064560), (10, 63958104), (12, 53298420), (14, 45684360), (15, 42638736), (16, 39973815), (18, 35532280), (19, 33662160), (20, 31979052), (21, 30456240), (24, 26649210), (28, 22842180), (30, 21319368), (35, 18273744), (36, 17766140), (38, 16831080), (40, 15989526), (42, 15228120), (45, 14212912), (48, 13324605), (56, 11421090), (57, 11220720), (60, 10659684), (63, 10152080), (70, 9136872), (72, 8883070), (76, 8415540), (80, 7994763), (84, 7614060), (90, 7106456), (95, 6732432), (105, 6091248), (112, 5710545), (114, 5610360), (120, 5329842), (126, 5076040), (133, 4808880), (140, 4568436), (144, 4441535), (152, 4207770), (168, 3807030), (171, 3740240), (180, 3553228), (190, 3366216), (210, 3045624), (228, 2805180), (240, 2664921), (252, 2538020), (266, 2404440), (280, 2284218), (285, 2244144), (304, 2103885), (315, 2030416), (336, 1903515), (342, 1870120), (360, 1776614), (380, 1683108), (399, 1602960), (420, 1522812), (456, 1402590), (504, 1269010), (532, 1202220), (560, 1142109), (570, 1122072), (630, 1015208), (665, 961776), (684, 935060), (720, 888307), (760, 841554), (798, 801480), (840, 761406), (855, 748048), (912, 701295), (1008, 634505), (1064, 601110), (1140, 561036), (1197, 534320), (1260, 507604), (1330, 480888), (1368, 467530), (1520, 420777), (1596, 400740), (1680, 380703), (1710, 374024), (1995, 320592), (2128, 300555), (2280, 280518), (2394, 267160), (2520, 253802), (2660, 240444), (2736, 233765), (3192, 200370), (3420, 187012), (3990, 160296), (4560, 140259), (4788, 133580), (5040, 126901), (5320, 120222), (5985, 106864), (6384, 100185), (6679, 95760), (6840, 93506), (7980, 80148), (9576, 66790), (10640, 60111), (11970, 53432), (13358, 47880), (13680, 46753), (15960, 40074), (19152, 33395), (20037, 31920), (23940, 26716)]