1280491784

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{863}}^1\times {\mathrm{1297}}^1$

素因数の和:2190

約数の個数: 64

約数和(自身を含む): 2826109440

約数和(自身を除く): 1545617656

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 863, 1144, 1297, 1726, 2594, 3452, 5188, 6904, 9493, 10376, 11219, 14267, 16861, 18986, 22438, 28534, 33722, 37972, 44876, 57068, 67444, 75944, 89752, 114136, 123409, 134888, 185471, 246818, 370942, 493636, 741884, 987272, 1119311, 1483768, 2238622, 4477244, 8954488, 12312421, 14551043, 24624842, 29102086, 49249684, 58204172, 98499368, 116408344, 160061473, 320122946, 640245892, 1280491784]

約数ペア:

[(1, 1280491784), (2, 640245892), (4, 320122946), (8, 160061473), (11, 116408344), (13, 98499368), (22, 58204172), (26, 49249684), (44, 29102086), (52, 24624842), (88, 14551043), (104, 12312421), (143, 8954488), (286, 4477244), (572, 2238622), (863, 1483768), (1144, 1119311), (1297, 987272), (1726, 741884), (2594, 493636), (3452, 370942), (5188, 246818), (6904, 185471), (9493, 134888), (10376, 123409), (11219, 114136), (14267, 89752), (16861, 75944), (18986, 67444), (22438, 57068), (28534, 44876), (33722, 37972)]