1777882280

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{319763}}^1$

素因数の和:319913

約数の個数: 32

約数和(自身を含む): 4029026400

約数和(自身を除く): 2251144120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 319763, 639526, 1279052, 1598815, 2558104, 3197630, 6395260, 12790520, 44447057, 88894114, 177788228, 222235285, 355576456, 444470570, 888941140, 1777882280]

約数ペア:

[(1, 1777882280), (2, 888941140), (4, 444470570), (5, 355576456), (8, 222235285), (10, 177788228), (20, 88894114), (40, 44447057), (139, 12790520), (278, 6395260), (556, 3197630), (695, 2558104), (1112, 1598815), (1390, 1279052), (2780, 639526), (5560, 319763)]