208355960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{168029}}^1$

素因数の和:168071

約数の個数: 32

約数和(自身を含む): 483926400

約数和(自身を除く): 275570440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 168029, 336058, 672116, 840145, 1344232, 1680290, 3360580, 5208899, 6721160, 10417798, 20835596, 26044495, 41671192, 52088990, 104177980, 208355960]

約数ペア:

[(1, 208355960), (2, 104177980), (4, 52088990), (5, 41671192), (8, 26044495), (10, 20835596), (20, 10417798), (31, 6721160), (40, 5208899), (62, 3360580), (124, 1680290), (155, 1344232), (248, 840145), (310, 672116), (620, 336058), (1240, 168029)]