345140980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{556679}}^1$

素因数の和:556719

約数の個数: 24

約数和(自身を含む): 748177920

約数和(自身を除く): 403036940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 556679, 1113358, 2226716, 2783395, 5566790, 11133580, 17257049, 34514098, 69028196, 86285245, 172570490, 345140980]

約数ペア:

[(1, 345140980), (2, 172570490), (4, 86285245), (5, 69028196), (10, 34514098), (20, 17257049), (31, 11133580), (62, 5566790), (124, 2783395), (155, 2226716), (310, 1113358), (620, 556679)]