215299960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173629}}^1$

素因数の和:173671

約数の個数: 32

約数和(自身を含む): 500054400

約数和(自身を除く): 284754440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 173629, 347258, 694516, 868145, 1389032, 1736290, 3472580, 5382499, 6945160, 10764998, 21529996, 26912495, 43059992, 53824990, 107649980, 215299960]

約数ペア:

[(1, 215299960), (2, 107649980), (4, 53824990), (5, 43059992), (8, 26912495), (10, 21529996), (20, 10764998), (31, 6945160), (40, 5382499), (62, 3472580), (124, 1736290), (155, 1389032), (248, 868145), (310, 694516), (620, 347258), (1240, 173629)]