208515220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{359509}}^1$

素因数の和:359547

約数の個数: 24

約数和(自身を含む): 452982600

約数和(自身を除く): 244467380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 359509, 719018, 1438036, 1797545, 3595090, 7190180, 10425761, 20851522, 41703044, 52128805, 104257610, 208515220]

約数ペア:

[(1, 208515220), (2, 104257610), (4, 52128805), (5, 41703044), (10, 20851522), (20, 10425761), (29, 7190180), (58, 3595090), (116, 1797545), (145, 1438036), (290, 719018), (580, 359509)]