17987450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{27673}}^1$

素因数の和:27698

約数の個数: 24

約数和(自身を含む): 36031548

約数和(自身を除く): 18044098

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 27673, 55346, 138365, 276730, 359749, 691825, 719498, 1383650, 1798745, 3597490, 8993725, 17987450]

約数ペア:

[(1, 17987450), (2, 8993725), (5, 3597490), (10, 1798745), (13, 1383650), (25, 719498), (26, 691825), (50, 359749), (65, 276730), (130, 138365), (325, 55346), (650, 27673)]