81916860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1365281}}^1$

素因数の和:1365293

約数の個数: 24

約数和(自身を含む): 229367376

約数和(自身を除く): 147450516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1365281, 2730562, 4095843, 5461124, 6826405, 8191686, 13652810, 16383372, 20479215, 27305620, 40958430, 81916860]

約数ペア:

[(1, 81916860), (2, 40958430), (3, 27305620), (4, 20479215), (5, 16383372), (6, 13652810), (10, 8191686), (12, 6826405), (15, 5461124), (20, 4095843), (30, 2730562), (60, 1365281)]