20316944

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{5059}}^1$

素因数の和:5318

約数の個数: 20

約数和(自身を含む): 39528720

約数和(自身を除く): 19211776

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 5059, 10118, 20236, 40472, 80944, 1269809, 2539618, 5079236, 10158472, 20316944]

約数ペア:

[(1, 20316944), (2, 10158472), (4, 5079236), (8, 2539618), (16, 1269809), (251, 80944), (502, 40472), (1004, 20236), (2008, 10118), (4016, 5059)]