987840

素因数分解:

$2^6\times 3^2\times 5^1\times 7^3$

素因数の和:44

約数の個数: 168

約数和(自身を含む): 3962400

約数和(自身を除く): 2974560

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, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 343, 360, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 672, 686, 720, 735, 784, 840, 882, 960, 980, 1008, 1029, 1120, 1176, 1260, 1344, 1372, 1440, 1470, 1568, 1680, 1715, 1764, 1960, 2016, 2058, 2205, 2240, 2352, 2520, 2744, 2880, 2940, 3087, 3136, 3360, 3430, 3528, 3920, 4032, 4116, 4410, 4704, 5040, 5145, 5488, 5880, 6174, 6720, 6860, 7056, 7840, 8232, 8820, 9408, 10080, 10290, 10976, 11760, 12348, 13720, 14112, 15435, 15680, 16464, 17640, 20160, 20580, 21952, 23520, 24696, 27440, 28224, 30870, 32928, 35280, 41160, 47040, 49392, 54880, 61740, 65856, 70560, 82320, 98784, 109760, 123480, 141120, 164640, 197568, 246960, 329280, 493920, 987840]

約数ペア:

[(1, 987840), (2, 493920), (3, 329280), (4, 246960), (5, 197568), (6, 164640), (7, 141120), (8, 123480), (9, 109760), (10, 98784), (12, 82320), (14, 70560), (15, 65856), (16, 61740), (18, 54880), (20, 49392), (21, 47040), (24, 41160), (28, 35280), (30, 32928), (32, 30870), (35, 28224), (36, 27440), (40, 24696), (42, 23520), (45, 21952), (48, 20580), (49, 20160), (56, 17640), (60, 16464), (63, 15680), (64, 15435), (70, 14112), (72, 13720), (80, 12348), (84, 11760), (90, 10976), (96, 10290), (98, 10080), (105, 9408), (112, 8820), (120, 8232), (126, 7840), (140, 7056), (144, 6860), (147, 6720), (160, 6174), (168, 5880), (180, 5488), (192, 5145), (196, 5040), (210, 4704), (224, 4410), (240, 4116), (245, 4032), (252, 3920), (280, 3528), (288, 3430), (294, 3360), (315, 3136), (320, 3087), (336, 2940), (343, 2880), (360, 2744), (392, 2520), (420, 2352), (441, 2240), (448, 2205), (480, 2058), (490, 2016), (504, 1960), (560, 1764), (576, 1715), (588, 1680), (630, 1568), (672, 1470), (686, 1440), (720, 1372), (735, 1344), (784, 1260), (840, 1176), (882, 1120), (960, 1029), (980, 1008)]