1279491100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{312071}}^1$

素因数の和:312126

約数の個数: 36

約数和(自身を含む): 2844224208

約数和(自身を除く): 1564733108

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 312071, 624142, 1248284, 1560355, 3120710, 6241420, 7801775, 12794911, 15603550, 25589822, 31207100, 51179644, 63974555, 127949110, 255898220, 319872775, 639745550, 1279491100]

約数ペア:

[(1, 1279491100), (2, 639745550), (4, 319872775), (5, 255898220), (10, 127949110), (20, 63974555), (25, 51179644), (41, 31207100), (50, 25589822), (82, 15603550), (100, 12794911), (164, 7801775), (205, 6241420), (410, 3120710), (820, 1560355), (1025, 1248284), (2050, 624142), (4100, 312071)]