2120106020

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1\times {\mathrm{1291}}^1$

素因数の和:1980

約数の個数: 48

約数和(自身を含む): 4492625088

約数和(自身を除く): 2372519068

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 523, 628, 785, 1046, 1291, 1570, 2092, 2582, 2615, 3140, 5164, 5230, 6455, 10460, 12910, 25820, 82111, 164222, 202687, 328444, 405374, 410555, 675193, 810748, 821110, 1013435, 1350386, 1642220, 2026870, 2700772, 3375965, 4053740, 6751930, 13503860, 106005301, 212010602, 424021204, 530026505, 1060053010, 2120106020]

約数ペア:

[(1, 2120106020), (2, 1060053010), (4, 530026505), (5, 424021204), (10, 212010602), (20, 106005301), (157, 13503860), (314, 6751930), (523, 4053740), (628, 3375965), (785, 2700772), (1046, 2026870), (1291, 1642220), (1570, 1350386), (2092, 1013435), (2582, 821110), (2615, 810748), (3140, 675193), (5164, 410555), (5230, 405374), (6455, 328444), (10460, 202687), (12910, 164222), (25820, 82111)]