20405207260

素因数分解:

$2^2\times 5^1\times {\mathrm{41201}}^1\times {\mathrm{24763}}^1$

素因数の和:65973

約数の個数: 24

約数和(自身を含む): 42853705776

約数和(自身を除く): 22448498516

約数列:

[1, 2, 4, 5, 10, 20, 24763, 41201, 49526, 82402, 99052, 123815, 164804, 206005, 247630, 412010, 495260, 824020, 1020260363, 2040520726, 4081041452, 5101301815, 10202603630, 20405207260]

約数ペア:

[(1, 20405207260), (2, 10202603630), (4, 5101301815), (5, 4081041452), (10, 2040520726), (20, 1020260363), (24763, 824020), (41201, 495260), (49526, 412010), (82402, 247630), (99052, 206005), (123815, 164804)]