8865020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 20109600

約数和(自身を除く): 11244580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 569, 779, 820, 1138, 1558, 2276, 2845, 3116, 3895, 5690, 7790, 10811, 11380, 15580, 21622, 23329, 43244, 46658, 54055, 93316, 108110, 116645, 216220, 233290, 443251, 466580, 886502, 1773004, 2216255, 4432510, 8865020]

約数ペア:

[(1, 8865020), (2, 4432510), (4, 2216255), (5, 1773004), (10, 886502), (19, 466580), (20, 443251), (38, 233290), (41, 216220), (76, 116645), (82, 108110), (95, 93316), (164, 54055), (190, 46658), (205, 43244), (380, 23329), (410, 21622), (569, 15580), (779, 11380), (820, 10811), (1138, 7790), (1558, 5690), (2276, 3895), (2845, 3116)]