81928825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1973}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 111617856

約数和(自身を除く): 29689031

約数列:

[1, 5, 11, 25, 55, 151, 275, 755, 1661, 1973, 3775, 8305, 9865, 21703, 41525, 49325, 108515, 297923, 542575, 1489615, 3277153, 7448075, 16385765, 81928825]

約数ペア:

[(1, 81928825), (5, 16385765), (11, 7448075), (25, 3277153), (55, 1489615), (151, 542575), (275, 297923), (755, 108515), (1661, 49325), (1973, 41525), (3775, 21703), (8305, 9865)]