209801740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{80077}}^1$

素因数の和:80217

約数の個数: 24

約数和(自身を含む): 443952432

約数和(自身を除く): 234150692

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 80077, 160154, 320308, 400385, 800770, 1601540, 10490087, 20980174, 41960348, 52450435, 104900870, 209801740]

約数ペア:

[(1, 209801740), (2, 104900870), (4, 52450435), (5, 41960348), (10, 20980174), (20, 10490087), (131, 1601540), (262, 800770), (524, 400385), (655, 320308), (1310, 160154), (2620, 80077)]