72379540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{212881}}^1$

素因数の和:212907

約数の個数: 24

約数和(自身を含む): 160938792

約数和(自身を除く): 88559252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 212881, 425762, 851524, 1064405, 2128810, 3618977, 4257620, 7237954, 14475908, 18094885, 36189770, 72379540]

約数ペア:

[(1, 72379540), (2, 36189770), (4, 18094885), (5, 14475908), (10, 7237954), (17, 4257620), (20, 3618977), (34, 2128810), (68, 1064405), (85, 851524), (170, 425762), (340, 212881)]