21551520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:838

約数の個数: 96

約数和(自身を含む): 69128640

約数和(自身を除く): 47577120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 80, 96, 118, 120, 160, 177, 236, 240, 295, 354, 472, 480, 590, 708, 761, 885, 944, 1180, 1416, 1522, 1770, 1888, 2283, 2360, 2832, 3044, 3540, 3805, 4566, 4720, 5664, 6088, 7080, 7610, 9132, 9440, 11415, 12176, 14160, 15220, 18264, 22830, 24352, 28320, 30440, 36528, 44899, 45660, 60880, 73056, 89798, 91320, 121760, 134697, 179596, 182640, 224495, 269394, 359192, 365280, 448990, 538788, 673485, 718384, 897980, 1077576, 1346970, 1436768, 1795960, 2155152, 2693940, 3591920, 4310304, 5387880, 7183840, 10775760, 21551520]

約数ペア:

[(1, 21551520), (2, 10775760), (3, 7183840), (4, 5387880), (5, 4310304), (6, 3591920), (8, 2693940), (10, 2155152), (12, 1795960), (15, 1436768), (16, 1346970), (20, 1077576), (24, 897980), (30, 718384), (32, 673485), (40, 538788), (48, 448990), (59, 365280), (60, 359192), (80, 269394), (96, 224495), (118, 182640), (120, 179596), (160, 134697), (177, 121760), (236, 91320), (240, 89798), (295, 73056), (354, 60880), (472, 45660), (480, 44899), (590, 36528), (708, 30440), (761, 28320), (885, 24352), (944, 22830), (1180, 18264), (1416, 15220), (1522, 14160), (1770, 12176), (1888, 11415), (2283, 9440), (2360, 9132), (2832, 7610), (3044, 7080), (3540, 6088), (3805, 5664), (4566, 4720)]