15513420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19889}}^1$

素因数の和:19914

約数の個数: 48

約数和(自身を含む): 46781280

約数和(自身を除く): 31267860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 19889, 39778, 59667, 79556, 99445, 119334, 198890, 238668, 258557, 298335, 397780, 517114, 596670, 775671, 1034228, 1193340, 1292785, 1551342, 2585570, 3102684, 3878355, 5171140, 7756710, 15513420]

約数ペア:

[(1, 15513420), (2, 7756710), (3, 5171140), (4, 3878355), (5, 3102684), (6, 2585570), (10, 1551342), (12, 1292785), (13, 1193340), (15, 1034228), (20, 775671), (26, 596670), (30, 517114), (39, 397780), (52, 298335), (60, 258557), (65, 238668), (78, 198890), (130, 119334), (156, 99445), (195, 79556), (260, 59667), (390, 39778), (780, 19889)]