642396170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{290677}}^1$

素因数の和:290714

約数の個数: 32

約数和(自身を含む): 1318515408

約数和(自身を除く): 676119238

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 290677, 581354, 1453385, 2906770, 3778801, 4941509, 7557602, 9883018, 18894005, 24707545, 37788010, 49415090, 64239617, 128479234, 321198085, 642396170]

約数ペア:

[(1, 642396170), (2, 321198085), (5, 128479234), (10, 64239617), (13, 49415090), (17, 37788010), (26, 24707545), (34, 18894005), (65, 9883018), (85, 7557602), (130, 4941509), (170, 3778801), (221, 2906770), (442, 1453385), (1105, 581354), (2210, 290677)]