12722440

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4357}}^1$

素因数の和:4441

約数の個数: 32

約数和(自身を含む): 29024280

約数和(自身を除く): 16301840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4357, 8714, 17428, 21785, 34856, 43570, 87140, 174280, 318061, 636122, 1272244, 1590305, 2544488, 3180610, 6361220, 12722440]

約数ペア:

[(1, 12722440), (2, 6361220), (4, 3180610), (5, 2544488), (8, 1590305), (10, 1272244), (20, 636122), (40, 318061), (73, 174280), (146, 87140), (292, 43570), (365, 34856), (584, 21785), (730, 17428), (1460, 8714), (2920, 4357)]