678791875

素因数分解:

$5^4\times {\mathrm{89}}^1\times {\mathrm{12203}}^1$

素因数の和:12312

約数の個数: 20

約数和(自身を含む): 857819160

約数和(自身を除く): 179027285

約数列:

[1, 5, 25, 89, 125, 445, 625, 2225, 11125, 12203, 55625, 61015, 305075, 1086067, 1525375, 5430335, 7626875, 27151675, 135758375, 678791875]

約数ペア:

[(1, 678791875), (5, 135758375), (25, 27151675), (89, 7626875), (125, 5430335), (445, 1525375), (625, 1086067), (2225, 305075), (11125, 61015), (12203, 55625)]