201220125

素因数分解:

$3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{18503}}^1$

素因数の和:18550

約数の個数: 32

約数和(自身を含む): 346394880

約数和(自身を除く): 145174755

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 125, 145, 375, 435, 725, 2175, 3625, 10875, 18503, 55509, 92515, 277545, 462575, 536587, 1387725, 1609761, 2312875, 2682935, 6938625, 8048805, 13414675, 40244025, 67073375, 201220125]

約数ペア:

[(1, 201220125), (3, 67073375), (5, 40244025), (15, 13414675), (25, 8048805), (29, 6938625), (75, 2682935), (87, 2312875), (125, 1609761), (145, 1387725), (375, 536587), (435, 462575), (725, 277545), (2175, 92515), (3625, 55509), (10875, 18503)]