218325

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 24

約数和(自身を含む): 374976

約数和(自身を除く): 156651

約数列:

[1, 3, 5, 15, 25, 41, 71, 75, 123, 205, 213, 355, 615, 1025, 1065, 1775, 2911, 3075, 5325, 8733, 14555, 43665, 72775, 218325]

約数ペア:

[(1, 218325), (3, 72775), (5, 43665), (15, 14555), (25, 8733), (41, 5325), (71, 3075), (75, 2911), (123, 1775), (205, 1065), (213, 1025), (355, 615)]