691875

素因数分解:

$3^3\times 5^4\times {\mathrm{41}}^1$

素因数の和:70

約数の個数: 40

約数和(自身を含む): 1312080

約数和(自身を除く): 620205

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 123, 125, 135, 205, 225, 369, 375, 615, 625, 675, 1025, 1107, 1125, 1845, 1875, 3075, 3375, 5125, 5535, 5625, 9225, 15375, 16875, 25625, 27675, 46125, 76875, 138375, 230625, 691875]

約数ペア:

[(1, 691875), (3, 230625), (5, 138375), (9, 76875), (15, 46125), (25, 27675), (27, 25625), (41, 16875), (45, 15375), (75, 9225), (123, 5625), (125, 5535), (135, 5125), (205, 3375), (225, 3075), (369, 1875), (375, 1845), (615, 1125), (625, 1107), (675, 1025)]