64615340

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{21683}}^1$

素因数の和:21841

約数の個数: 24

約数和(自身を含む): 136609200

約数和(自身を除く): 71993860

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 21683, 43366, 86732, 108415, 216830, 433660, 3230767, 6461534, 12923068, 16153835, 32307670, 64615340]

約数ペア:

[(1, 64615340), (2, 32307670), (4, 16153835), (5, 12923068), (10, 6461534), (20, 3230767), (149, 433660), (298, 216830), (596, 108415), (745, 86732), (1490, 43366), (2980, 21683)]