686708372

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{2417}}^1$

素因数の和:2640

約数の個数: 48

約数和(自身を含む): 1402826880

約数和(自身を除く): 716118508

約数列:

[1, 2, 4, 7, 14, 28, 73, 139, 146, 278, 292, 511, 556, 973, 1022, 1946, 2044, 2417, 3892, 4834, 9668, 10147, 16919, 20294, 33838, 40588, 67676, 71029, 142058, 176441, 284116, 335963, 352882, 671926, 705764, 1235087, 1343852, 2351741, 2470174, 4703482, 4940348, 9406964, 24525299, 49050598, 98101196, 171677093, 343354186, 686708372]

約数ペア:

[(1, 686708372), (2, 343354186), (4, 171677093), (7, 98101196), (14, 49050598), (28, 24525299), (73, 9406964), (139, 4940348), (146, 4703482), (278, 2470174), (292, 2351741), (511, 1343852), (556, 1235087), (973, 705764), (1022, 671926), (1946, 352882), (2044, 335963), (2417, 284116), (3892, 176441), (4834, 142058), (9668, 71029), (10147, 67676), (16919, 40588), (20294, 33838)]