20908010

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 38541312

約数和(自身を除く): 17633302

約数列:

[1, 2, 5, 10, 101, 127, 163, 202, 254, 326, 505, 635, 815, 1010, 1270, 1630, 12827, 16463, 20701, 25654, 32926, 41402, 64135, 82315, 103505, 128270, 164630, 207010, 2090801, 4181602, 10454005, 20908010]

約数ペア:

[(1, 20908010), (2, 10454005), (5, 4181602), (10, 2090801), (101, 207010), (127, 164630), (163, 128270), (202, 103505), (254, 82315), (326, 64135), (505, 41402), (635, 32926), (815, 25654), (1010, 20701), (1270, 16463), (1630, 12827)]