19009420

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6379}}^1$

素因数の和:6537

約数の個数: 24

約数和(自身を含む): 40194000

約数和(自身を除く): 21184580

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6379, 12758, 25516, 31895, 63790, 127580, 950471, 1900942, 3801884, 4752355, 9504710, 19009420]

約数ペア:

[(1, 19009420), (2, 9504710), (4, 4752355), (5, 3801884), (10, 1900942), (20, 950471), (149, 127580), (298, 63790), (596, 31895), (745, 25516), (1490, 12758), (2980, 6379)]