261750754820

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{83360113}}^1$

素因数の和:83360279

約数の個数: 24

約数和(自身を含む): 553177716504

約数和(自身を除く): 291426961684

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 83360113, 166720226, 333440452, 416800565, 833601130, 1667202260, 13087537741, 26175075482, 52350150964, 65437688705, 130875377410, 261750754820]

約数ペア:

[(1, 261750754820), (2, 130875377410), (4, 65437688705), (5, 52350150964), (10, 26175075482), (20, 13087537741), (157, 1667202260), (314, 833601130), (628, 416800565), (785, 333440452), (1570, 166720226), (3140, 83360113)]