2478778840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3645263}}^1$

素因数の和:3645291

約数の個数: 32

約数和(自身を含む): 5905327680

約数和(自身を除く): 3426548840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3645263, 7290526, 14581052, 18226315, 29162104, 36452630, 61969471, 72905260, 123938942, 145810520, 247877884, 309847355, 495755768, 619694710, 1239389420, 2478778840]

約数ペア:

[(1, 2478778840), (2, 1239389420), (4, 619694710), (5, 495755768), (8, 309847355), (10, 247877884), (17, 145810520), (20, 123938942), (34, 72905260), (40, 61969471), (68, 36452630), (85, 29162104), (136, 18226315), (170, 14581052), (340, 7290526), (680, 3645263)]