20129020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{811}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 45426528

約数和(自身を除く): 25297508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 146, 170, 292, 340, 365, 730, 811, 1241, 1460, 1622, 2482, 3244, 4055, 4964, 6205, 8110, 12410, 13787, 16220, 24820, 27574, 55148, 59203, 68935, 118406, 137870, 236812, 275740, 296015, 592030, 1006451, 1184060, 2012902, 4025804, 5032255, 10064510, 20129020]

約数ペア:

[(1, 20129020), (2, 10064510), (4, 5032255), (5, 4025804), (10, 2012902), (17, 1184060), (20, 1006451), (34, 592030), (68, 296015), (73, 275740), (85, 236812), (146, 137870), (170, 118406), (292, 68935), (340, 59203), (365, 55148), (730, 27574), (811, 24820), (1241, 16220), (1460, 13787), (1622, 12410), (2482, 8110), (3244, 6205), (4055, 4964)]