81812725

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{541}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 106457472

約数和(自身を除く): 24644747

約数列:

[1, 5, 23, 25, 115, 263, 541, 575, 1315, 2705, 6049, 6575, 12443, 13525, 30245, 62215, 142283, 151225, 311075, 711415, 3272509, 3557075, 16362545, 81812725]

約数ペア:

[(1, 81812725), (5, 16362545), (23, 3557075), (25, 3272509), (115, 711415), (263, 311075), (541, 151225), (575, 142283), (1315, 62215), (2705, 30245), (6049, 13525), (6575, 12443)]