858000980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{4021}}^1$

素因数の和:4304

約数の個数: 48

約数和(自身を含む): 1848704256

約数和(自身を除く): 990703276

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 227, 235, 454, 470, 908, 940, 1135, 2270, 4021, 4540, 8042, 10669, 16084, 20105, 21338, 40210, 42676, 53345, 80420, 106690, 188987, 213380, 377974, 755948, 912767, 944935, 1825534, 1889870, 3651068, 3779740, 4563835, 9127670, 18255340, 42900049, 85800098, 171600196, 214500245, 429000490, 858000980]

約数ペア:

[(1, 858000980), (2, 429000490), (4, 214500245), (5, 171600196), (10, 85800098), (20, 42900049), (47, 18255340), (94, 9127670), (188, 4563835), (227, 3779740), (235, 3651068), (454, 1889870), (470, 1825534), (908, 944935), (940, 912767), (1135, 755948), (2270, 377974), (4021, 213380), (4540, 188987), (8042, 106690), (10669, 80420), (16084, 53345), (20105, 42676), (21338, 40210)]