219705025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:738

約数の個数: 36

約数和(自身を含む): 296016768

約数和(自身を除く): 76311743

約数列:

[1, 5, 17, 25, 47, 85, 235, 289, 425, 647, 799, 1175, 1445, 3235, 3995, 7225, 10999, 13583, 16175, 19975, 30409, 54995, 67915, 152045, 186983, 274975, 339575, 516953, 760225, 934915, 2584765, 4674575, 8788201, 12923825, 43941005, 219705025]

約数ペア:

[(1, 219705025), (5, 43941005), (17, 12923825), (25, 8788201), (47, 4674575), (85, 2584765), (235, 934915), (289, 760225), (425, 516953), (647, 339575), (799, 274975), (1175, 186983), (1445, 152045), (3235, 67915), (3995, 54995), (7225, 30409), (10999, 19975), (13583, 16175)]