638519035

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2129}}^1$

素因数の和:2212

約数の個数: 64

約数和(自身を含む): 1030579200

約数和(自身を除く): 392060165

約数列:

[1, 5, 7, 11, 19, 35, 41, 55, 77, 95, 133, 205, 209, 287, 385, 451, 665, 779, 1045, 1435, 1463, 2129, 2255, 3157, 3895, 5453, 7315, 8569, 10645, 14903, 15785, 23419, 27265, 40451, 42845, 59983, 74515, 87289, 117095, 163933, 202255, 283157, 299915, 436445, 444961, 611023, 819665, 960179, 1415785, 1658491, 2224805, 3055115, 3114727, 4800895, 6721253, 8292455, 11609437, 15573635, 18243401, 33606265, 58047185, 91217005, 127703807, 638519035]

約数ペア:

[(1, 638519035), (5, 127703807), (7, 91217005), (11, 58047185), (19, 33606265), (35, 18243401), (41, 15573635), (55, 11609437), (77, 8292455), (95, 6721253), (133, 4800895), (205, 3114727), (209, 3055115), (287, 2224805), (385, 1658491), (451, 1415785), (665, 960179), (779, 819665), (1045, 611023), (1435, 444961), (1463, 436445), (2129, 299915), (2255, 283157), (3157, 202255), (3895, 163933), (5453, 117095), (7315, 87289), (8569, 74515), (10645, 59983), (14903, 42845), (15785, 40451), (23419, 27265)]