79540025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 106780740

約数和(自身を除く): 27240715

約数列:

[1, 5, 17, 25, 85, 101, 109, 289, 425, 505, 545, 1445, 1717, 1853, 2525, 2725, 7225, 8585, 9265, 11009, 29189, 31501, 42925, 46325, 55045, 145945, 157505, 187153, 275225, 729725, 787525, 935765, 3181601, 4678825, 15908005, 79540025]

約数ペア:

[(1, 79540025), (5, 15908005), (17, 4678825), (25, 3181601), (85, 935765), (101, 787525), (109, 729725), (289, 275225), (425, 187153), (505, 157505), (545, 145945), (1445, 55045), (1717, 46325), (1853, 42925), (2525, 31501), (2725, 29189), (7225, 11009), (8585, 9265)]