1640668880

素因数分解:

$2^4\times 5^1\times {\mathrm{677}}^1\times {\mathrm{30293}}^1$

素因数の和:30983

約数の個数: 40

約数和(自身を含む): 3820315752

約数和(自身を除く): 2179646872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 677, 1354, 2708, 3385, 5416, 6770, 10832, 13540, 27080, 30293, 54160, 60586, 121172, 151465, 242344, 302930, 484688, 605860, 1211720, 2423440, 20508361, 41016722, 82033444, 102541805, 164066888, 205083610, 328133776, 410167220, 820334440, 1640668880]

約数ペア:

[(1, 1640668880), (2, 820334440), (4, 410167220), (5, 328133776), (8, 205083610), (10, 164066888), (16, 102541805), (20, 82033444), (40, 41016722), (80, 20508361), (677, 2423440), (1354, 1211720), (2708, 605860), (3385, 484688), (5416, 302930), (6770, 242344), (10832, 151465), (13540, 121172), (27080, 60586), (30293, 54160)]