91309640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53087}}^1$

素因数の和:53141

約数の個数: 32

約数和(自身を含む): 210228480

約数和(自身を除く): 118918840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 53087, 106174, 212348, 265435, 424696, 530870, 1061740, 2123480, 2282741, 4565482, 9130964, 11413705, 18261928, 22827410, 45654820, 91309640]

約数ペア:

[(1, 91309640), (2, 45654820), (4, 22827410), (5, 18261928), (8, 11413705), (10, 9130964), (20, 4565482), (40, 2282741), (43, 2123480), (86, 1061740), (172, 530870), (215, 424696), (344, 265435), (430, 212348), (860, 106174), (1720, 53087)]