639861508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{2297}}^1$

素因数の和:2812

約数の個数: 48

約数和(自身を含む): 1318794624

約数和(自身を除く): 678933116

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 487, 572, 974, 1948, 2297, 4594, 5357, 6331, 9188, 10714, 12662, 21428, 25267, 25324, 29861, 50534, 59722, 69641, 101068, 119444, 139282, 278564, 328471, 656942, 1118639, 1313884, 2237278, 4474556, 12305029, 14542307, 24610058, 29084614, 49220116, 58169228, 159965377, 319930754, 639861508]

約数ペア:

[(1, 639861508), (2, 319930754), (4, 159965377), (11, 58169228), (13, 49220116), (22, 29084614), (26, 24610058), (44, 14542307), (52, 12305029), (143, 4474556), (286, 2237278), (487, 1313884), (572, 1118639), (974, 656942), (1948, 328471), (2297, 278564), (4594, 139282), (5357, 119444), (6331, 101068), (9188, 69641), (10714, 59722), (12662, 50534), (21428, 29861), (25267, 25324)]