20157830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 64

約数和(自身を含む): 46282752

約数和(自身を除く): 26124922

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 47, 55, 70, 77, 94, 110, 154, 235, 329, 385, 470, 517, 557, 658, 770, 1034, 1114, 1645, 2585, 2785, 3290, 3619, 3899, 5170, 5570, 6127, 7238, 7798, 12254, 18095, 19495, 26179, 30635, 36190, 38990, 42889, 52358, 61270, 85778, 130895, 183253, 214445, 261790, 287969, 366506, 428890, 575938, 916265, 1439845, 1832530, 2015783, 2879690, 4031566, 10078915, 20157830]

約数ペア:

[(1, 20157830), (2, 10078915), (5, 4031566), (7, 2879690), (10, 2015783), (11, 1832530), (14, 1439845), (22, 916265), (35, 575938), (47, 428890), (55, 366506), (70, 287969), (77, 261790), (94, 214445), (110, 183253), (154, 130895), (235, 85778), (329, 61270), (385, 52358), (470, 42889), (517, 38990), (557, 36190), (658, 30635), (770, 26179), (1034, 19495), (1114, 18095), (1645, 12254), (2585, 7798), (2785, 7238), (3290, 6127), (3619, 5570), (3899, 5170)]