19105925

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:150

約数の個数: 36

約数和(自身を含む): 26220420

約数和(自身を除く): 7114495

約数列:

[1, 5, 19, 25, 29, 73, 95, 145, 361, 365, 475, 551, 725, 1387, 1805, 1825, 2117, 2755, 6935, 9025, 10469, 10585, 13775, 26353, 34675, 40223, 52345, 52925, 131765, 201115, 261725, 658825, 764237, 1005575, 3821185, 19105925]

約数ペア:

[(1, 19105925), (5, 3821185), (19, 1005575), (25, 764237), (29, 658825), (73, 261725), (95, 201115), (145, 131765), (361, 52925), (365, 52345), (475, 40223), (551, 34675), (725, 26353), (1387, 13775), (1805, 10585), (1825, 10469), (2117, 9025), (2755, 6935)]