212915575

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 285490656

約数和(自身を除く): 72575081

約数列:

[1, 5, 25, 37, 43, 53, 101, 185, 215, 265, 505, 925, 1075, 1325, 1591, 1961, 2279, 2525, 3737, 4343, 5353, 7955, 9805, 11395, 18685, 21715, 26765, 39775, 49025, 56975, 84323, 93425, 108575, 133825, 160691, 198061, 230179, 421615, 803455, 990305, 1150895, 2108075, 4017275, 4951525, 5754475, 8516623, 42583115, 212915575]

約数ペア:

[(1, 212915575), (5, 42583115), (25, 8516623), (37, 5754475), (43, 4951525), (53, 4017275), (101, 2108075), (185, 1150895), (215, 990305), (265, 803455), (505, 421615), (925, 230179), (1075, 198061), (1325, 160691), (1591, 133825), (1961, 108575), (2279, 93425), (2525, 84323), (3737, 56975), (4343, 49025), (5353, 39775), (7955, 26765), (9805, 21715), (11395, 18685)]