78641080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40123}}^1$

素因数の和:40148

約数の個数: 48

約数和(自身を含む): 205836120

約数和(自身を除く): 127195040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 40123, 80246, 160492, 200615, 280861, 320984, 401230, 561722, 802460, 1123444, 1404305, 1604920, 1966027, 2246888, 2808610, 3932054, 5617220, 7864108, 9830135, 11234440, 15728216, 19660270, 39320540, 78641080]

約数ペア:

[(1, 78641080), (2, 39320540), (4, 19660270), (5, 15728216), (7, 11234440), (8, 9830135), (10, 7864108), (14, 5617220), (20, 3932054), (28, 2808610), (35, 2246888), (40, 1966027), (49, 1604920), (56, 1404305), (70, 1123444), (98, 802460), (140, 561722), (196, 401230), (245, 320984), (280, 280861), (392, 200615), (490, 160492), (980, 80246), (1960, 40123)]