289015940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{457}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 616167552

約数和(自身を除く): 327151612

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 307, 412, 457, 515, 614, 914, 1030, 1228, 1535, 1828, 2060, 2285, 3070, 4570, 6140, 9140, 31621, 47071, 63242, 94142, 126484, 140299, 158105, 188284, 235355, 280598, 316210, 470710, 561196, 632420, 701495, 941420, 1402990, 2805980, 14450797, 28901594, 57803188, 72253985, 144507970, 289015940]

約数ペア:

[(1, 289015940), (2, 144507970), (4, 72253985), (5, 57803188), (10, 28901594), (20, 14450797), (103, 2805980), (206, 1402990), (307, 941420), (412, 701495), (457, 632420), (515, 561196), (614, 470710), (914, 316210), (1030, 280598), (1228, 235355), (1535, 188284), (1828, 158105), (2060, 140299), (2285, 126484), (3070, 94142), (4570, 63242), (6140, 47071), (9140, 31621)]