68680456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4751}}^1$

素因数の和:4909

約数の個数: 32

約数和(自身を含む): 139708800

約数和(自身を除く): 71028344

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1807, 3614, 4751, 7228, 9502, 14456, 19004, 38008, 61763, 123526, 247052, 494104, 660389, 1320778, 2641556, 5283112, 8585057, 17170114, 34340228, 68680456]

約数ペア:

[(1, 68680456), (2, 34340228), (4, 17170114), (8, 8585057), (13, 5283112), (26, 2641556), (52, 1320778), (104, 660389), (139, 494104), (278, 247052), (556, 123526), (1112, 61763), (1807, 38008), (3614, 19004), (4751, 14456), (7228, 9502)]