31188976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1$

素因数の和:750

約数の個数: 80

約数和(自身を含む): 76883968

約数和(自身を除く): 45694992

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 691, 728, 806, 868, 1382, 1456, 1612, 1736, 2764, 2821, 3224, 3472, 4837, 5528, 5642, 6448, 8983, 9674, 11056, 11284, 17966, 19348, 21421, 22568, 35932, 38696, 42842, 45136, 62881, 71864, 77392, 85684, 125762, 143728, 149947, 171368, 251524, 278473, 299894, 342736, 503048, 556946, 599788, 1006096, 1113892, 1199576, 1949311, 2227784, 2399152, 3898622, 4455568, 7797244, 15594488, 31188976]

約数ペア:

[(1, 31188976), (2, 15594488), (4, 7797244), (7, 4455568), (8, 3898622), (13, 2399152), (14, 2227784), (16, 1949311), (26, 1199576), (28, 1113892), (31, 1006096), (52, 599788), (56, 556946), (62, 503048), (91, 342736), (104, 299894), (112, 278473), (124, 251524), (182, 171368), (208, 149947), (217, 143728), (248, 125762), (364, 85684), (403, 77392), (434, 71864), (496, 62881), (691, 45136), (728, 42842), (806, 38696), (868, 35932), (1382, 22568), (1456, 21421), (1612, 19348), (1736, 17966), (2764, 11284), (2821, 11056), (3224, 9674), (3472, 8983), (4837, 6448), (5528, 5642)]