64959940

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{16829}}^1$

素因数の和:17031

約数の個数: 24

約数和(自身を含む): 137130840

約数和(自身を除く): 72170900

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 16829, 33658, 67316, 84145, 168290, 336580, 3247997, 6495994, 12991988, 16239985, 32479970, 64959940]

約数ペア:

[(1, 64959940), (2, 32479970), (4, 16239985), (5, 12991988), (10, 6495994), (20, 3247997), (193, 336580), (386, 168290), (772, 84145), (965, 67316), (1930, 33658), (3860, 16829)]