18998005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15383}}^1$

素因数の和:15420

約数の個数: 16

約数和(自身を含む): 25845120

約数和(自身を除く): 6847115

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 15383, 76915, 199979, 292277, 999895, 1461385, 3799601, 18998005]

約数ペア:

[(1, 18998005), (5, 3799601), (13, 1461385), (19, 999895), (65, 292277), (95, 199979), (247, 76915), (1235, 15383)]