216845925

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{727}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 371559552

約数和(自身を除く): 154713627

約数列:

[1, 3, 5, 15, 25, 41, 75, 97, 123, 205, 291, 485, 615, 727, 1025, 1455, 2181, 2425, 3075, 3635, 3977, 7275, 10905, 11931, 18175, 19885, 29807, 54525, 59655, 70519, 89421, 99425, 149035, 211557, 298275, 352595, 447105, 745175, 1057785, 1762975, 2235525, 2891279, 5288925, 8673837, 14456395, 43369185, 72281975, 216845925]

約数ペア:

[(1, 216845925), (3, 72281975), (5, 43369185), (15, 14456395), (25, 8673837), (41, 5288925), (75, 2891279), (97, 2235525), (123, 1762975), (205, 1057785), (291, 745175), (485, 447105), (615, 352595), (727, 298275), (1025, 211557), (1455, 149035), (2181, 99425), (2425, 89421), (3075, 70519), (3635, 59655), (3977, 54525), (7275, 29807), (10905, 19885), (11931, 18175)]