20184100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:445

約数の個数: 72

約数和(自身を含む): 47996928

約数和(自身を除く): 27812828

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 31, 34, 50, 62, 68, 85, 100, 124, 155, 170, 310, 340, 383, 425, 527, 620, 766, 775, 850, 1054, 1532, 1550, 1700, 1915, 2108, 2635, 3100, 3830, 5270, 6511, 7660, 9575, 10540, 11873, 13022, 13175, 19150, 23746, 26044, 26350, 32555, 38300, 47492, 52700, 59365, 65110, 118730, 130220, 162775, 201841, 237460, 296825, 325550, 403682, 593650, 651100, 807364, 1009205, 1187300, 2018410, 4036820, 5046025, 10092050, 20184100]

約数ペア:

[(1, 20184100), (2, 10092050), (4, 5046025), (5, 4036820), (10, 2018410), (17, 1187300), (20, 1009205), (25, 807364), (31, 651100), (34, 593650), (50, 403682), (62, 325550), (68, 296825), (85, 237460), (100, 201841), (124, 162775), (155, 130220), (170, 118730), (310, 65110), (340, 59365), (383, 52700), (425, 47492), (527, 38300), (620, 32555), (766, 26350), (775, 26044), (850, 23746), (1054, 19150), (1532, 13175), (1550, 13022), (1700, 11873), (1915, 10540), (2108, 9575), (2635, 7660), (3100, 6511), (3830, 5270)]