278018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:86

約数の個数: 24

約数和(自身を含む): 489972

約数和(自身を除く): 211954

約数列:

[1, 2, 13, 17, 26, 34, 37, 74, 221, 289, 442, 481, 578, 629, 962, 1258, 3757, 7514, 8177, 10693, 16354, 21386, 139009, 278018]

約数ペア:

[(1, 278018), (2, 139009), (13, 21386), (17, 16354), (26, 10693), (34, 8177), (37, 7514), (74, 3757), (221, 1258), (289, 962), (442, 629), (481, 578)]