15811700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 37122624

約数和(自身を除く): 21310924

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 71, 85, 100, 131, 142, 170, 262, 284, 340, 355, 425, 524, 655, 710, 850, 1207, 1310, 1420, 1700, 1775, 2227, 2414, 2620, 3275, 3550, 4454, 4828, 6035, 6550, 7100, 8908, 9301, 11135, 12070, 13100, 18602, 22270, 24140, 30175, 37204, 44540, 46505, 55675, 60350, 93010, 111350, 120700, 158117, 186020, 222700, 232525, 316234, 465050, 632468, 790585, 930100, 1581170, 3162340, 3952925, 7905850, 15811700]

約数ペア:

[(1, 15811700), (2, 7905850), (4, 3952925), (5, 3162340), (10, 1581170), (17, 930100), (20, 790585), (25, 632468), (34, 465050), (50, 316234), (68, 232525), (71, 222700), (85, 186020), (100, 158117), (131, 120700), (142, 111350), (170, 93010), (262, 60350), (284, 55675), (340, 46505), (355, 44540), (425, 37204), (524, 30175), (655, 24140), (710, 22270), (850, 18602), (1207, 13100), (1310, 12070), (1420, 11135), (1700, 9301), (1775, 8908), (2227, 7100), (2414, 6550), (2620, 6035), (3275, 4828), (3550, 4454)]