656793904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{22717}}^1$

素因数の和:22877

約数の個数: 40

約数和(自身を含む): 1380345680

約数和(自身を除く): 723551776

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 1112, 1807, 2224, 3614, 7228, 14456, 22717, 28912, 45434, 90868, 181736, 295321, 363472, 590642, 1181284, 2362568, 3157663, 4725136, 6315326, 12630652, 25261304, 41049619, 50522608, 82099238, 164198476, 328396952, 656793904]

約数ペア:

[(1, 656793904), (2, 328396952), (4, 164198476), (8, 82099238), (13, 50522608), (16, 41049619), (26, 25261304), (52, 12630652), (104, 6315326), (139, 4725136), (208, 3157663), (278, 2362568), (556, 1181284), (1112, 590642), (1807, 363472), (2224, 295321), (3614, 181736), (7228, 90868), (14456, 45434), (22717, 28912)]