81318120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52127}}^1$

素因数の和:52154

約数の個数: 64

約数和(自身を含む): 262725120

約数和(自身を除く): 181407000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 52127, 104254, 156381, 208508, 260635, 312762, 417016, 521270, 625524, 677651, 781905, 1042540, 1251048, 1355302, 1563810, 2032953, 2085080, 2710604, 3127620, 3388255, 4065906, 5421208, 6255240, 6776510, 8131812, 10164765, 13553020, 16263624, 20329530, 27106040, 40659060, 81318120]

約数ペア:

[(1, 81318120), (2, 40659060), (3, 27106040), (4, 20329530), (5, 16263624), (6, 13553020), (8, 10164765), (10, 8131812), (12, 6776510), (13, 6255240), (15, 5421208), (20, 4065906), (24, 3388255), (26, 3127620), (30, 2710604), (39, 2085080), (40, 2032953), (52, 1563810), (60, 1355302), (65, 1251048), (78, 1042540), (104, 781905), (120, 677651), (130, 625524), (156, 521270), (195, 417016), (260, 312762), (312, 260635), (390, 208508), (520, 156381), (780, 104254), (1560, 52127)]