1900511420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71287}}^1$

素因数の和:71370

約数の個数: 48

約数和(自身を含む): 4215687168

約数和(自身を除く): 2315175748

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 13330, 26660, 71287, 142574, 285148, 356435, 712870, 1425740, 2209897, 3065341, 4419794, 6130682, 8839588, 11049485, 12261364, 15326705, 22098970, 30653410, 44197940, 61306820, 95025571, 190051142, 380102284, 475127855, 950255710, 1900511420]

約数ペア:

[(1, 1900511420), (2, 950255710), (4, 475127855), (5, 380102284), (10, 190051142), (20, 95025571), (31, 61306820), (43, 44197940), (62, 30653410), (86, 22098970), (124, 15326705), (155, 12261364), (172, 11049485), (215, 8839588), (310, 6130682), (430, 4419794), (620, 3065341), (860, 2209897), (1333, 1425740), (2666, 712870), (5332, 356435), (6665, 285148), (13330, 142574), (26660, 71287)]