28461875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:177

約数の個数: 40

約数和(自身を含む): 39887232

約数和(自身を除く): 11425357

約数列:

[1, 5, 13, 25, 31, 65, 113, 125, 155, 325, 403, 565, 625, 775, 1469, 1625, 2015, 2825, 3503, 3875, 7345, 8125, 10075, 14125, 17515, 19375, 36725, 45539, 50375, 70625, 87575, 183625, 227695, 251875, 437875, 918125, 1138475, 2189375, 5692375, 28461875]

約数ペア:

[(1, 28461875), (5, 5692375), (13, 2189375), (25, 1138475), (31, 918125), (65, 437875), (113, 251875), (125, 227695), (155, 183625), (325, 87575), (403, 70625), (565, 50375), (625, 45539), (775, 36725), (1469, 19375), (1625, 17515), (2015, 14125), (2825, 10075), (3503, 8125), (3875, 7345)]