890861875

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2137}}^1$

素因数の和:2209

約数の個数: 40

約数和(自身を含む): 1202240160

約数和(自身を除く): 311378285

約数列:

[1, 5, 23, 25, 29, 115, 125, 145, 575, 625, 667, 725, 2137, 2875, 3335, 3625, 10685, 14375, 16675, 18125, 49151, 53425, 61973, 83375, 245755, 267125, 309865, 416875, 1228775, 1335625, 1425379, 1549325, 6143875, 7126895, 7746625, 30719375, 35634475, 38733125, 178172375, 890861875]

約数ペア:

[(1, 890861875), (5, 178172375), (23, 38733125), (25, 35634475), (29, 30719375), (115, 7746625), (125, 7126895), (145, 6143875), (575, 1549325), (625, 1425379), (667, 1335625), (725, 1228775), (2137, 416875), (2875, 309865), (3335, 267125), (3625, 245755), (10685, 83375), (14375, 61973), (16675, 53425), (18125, 49151)]