20663130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 30658470

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 89, 109, 142, 178, 213, 218, 267, 327, 355, 426, 445, 534, 545, 654, 710, 890, 1065, 1090, 1335, 1635, 2130, 2670, 3270, 6319, 7739, 9701, 12638, 15478, 18957, 19402, 23217, 29103, 31595, 37914, 38695, 46434, 48505, 58206, 63190, 77390, 94785, 97010, 116085, 145515, 189570, 232170, 291030, 688771, 1377542, 2066313, 3443855, 4132626, 6887710, 10331565, 20663130]

約数ペア:

[(1, 20663130), (2, 10331565), (3, 6887710), (5, 4132626), (6, 3443855), (10, 2066313), (15, 1377542), (30, 688771), (71, 291030), (89, 232170), (109, 189570), (142, 145515), (178, 116085), (213, 97010), (218, 94785), (267, 77390), (327, 63190), (355, 58206), (426, 48505), (445, 46434), (534, 38695), (545, 37914), (654, 31595), (710, 29103), (890, 23217), (1065, 19402), (1090, 18957), (1335, 15478), (1635, 12638), (2130, 9701), (2670, 7739), (3270, 6319)]