218980375

素因数分解:

$5^3\times {\mathrm{263}}^1\times {\mathrm{6661}}^1$

素因数の和:6939

約数の個数: 16

約数和(自身を含む): 274367808

約数和(自身を除く): 55387433

約数列:

[1, 5, 25, 125, 263, 1315, 6575, 6661, 32875, 33305, 166525, 832625, 1751843, 8759215, 43796075, 218980375]

約数ペア:

[(1, 218980375), (5, 43796075), (25, 8759215), (125, 1751843), (263, 832625), (1315, 166525), (6575, 33305), (6661, 32875)]