20877250

素因数分解:

$2^1\times 5^3\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 40825512

約数和(自身を除く): 19948262

約数列:

[1, 2, 5, 10, 25, 37, 50, 61, 74, 122, 125, 185, 250, 305, 370, 610, 925, 1369, 1525, 1850, 2257, 2738, 3050, 4514, 4625, 6845, 7625, 9250, 11285, 13690, 15250, 22570, 34225, 56425, 68450, 83509, 112850, 167018, 171125, 282125, 342250, 417545, 564250, 835090, 2087725, 4175450, 10438625, 20877250]

約数ペア:

[(1, 20877250), (2, 10438625), (5, 4175450), (10, 2087725), (25, 835090), (37, 564250), (50, 417545), (61, 342250), (74, 282125), (122, 171125), (125, 167018), (185, 112850), (250, 83509), (305, 68450), (370, 56425), (610, 34225), (925, 22570), (1369, 15250), (1525, 13690), (1850, 11285), (2257, 9250), (2738, 7625), (3050, 6845), (4514, 4625)]