291299020

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{19709}}^1$

素因数の和:20457

約数の個数: 24

約数和(自身を含む): 612586800

約数和(自身を除く): 321287780

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 7390, 14780, 19709, 39418, 78836, 98545, 197090, 394180, 14564951, 29129902, 58259804, 72824755, 145649510, 291299020]

約数ペア:

[(1, 291299020), (2, 145649510), (4, 72824755), (5, 58259804), (10, 29129902), (20, 14564951), (739, 394180), (1478, 197090), (2956, 98545), (3695, 78836), (7390, 39418), (14780, 19709)]