31450280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 73543680

約数和(自身を除く): 42093400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 151, 164, 205, 254, 302, 328, 410, 508, 604, 635, 755, 820, 1016, 1208, 1270, 1510, 1640, 2540, 3020, 5080, 5207, 6040, 6191, 10414, 12382, 19177, 20828, 24764, 26035, 30955, 38354, 41656, 49528, 52070, 61910, 76708, 95885, 104140, 123820, 153416, 191770, 208280, 247640, 383540, 767080, 786257, 1572514, 3145028, 3931285, 6290056, 7862570, 15725140, 31450280]

約数ペア:

[(1, 31450280), (2, 15725140), (4, 7862570), (5, 6290056), (8, 3931285), (10, 3145028), (20, 1572514), (40, 786257), (41, 767080), (82, 383540), (127, 247640), (151, 208280), (164, 191770), (205, 153416), (254, 123820), (302, 104140), (328, 95885), (410, 76708), (508, 61910), (604, 52070), (635, 49528), (755, 41656), (820, 38354), (1016, 30955), (1208, 26035), (1270, 24764), (1510, 20828), (1640, 19177), (2540, 12382), (3020, 10414), (5080, 6191), (5207, 6040)]