81511428

素因数分解:

$2^2\times 3^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1\times {\mathrm{293}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 193616640

約数和(自身を除く): 112105212

約数列:

[1, 2, 3, 4, 6, 12, 97, 194, 239, 291, 293, 388, 478, 582, 586, 717, 879, 956, 1164, 1172, 1434, 1758, 2868, 3516, 23183, 28421, 46366, 56842, 69549, 70027, 85263, 92732, 113684, 139098, 140054, 170526, 210081, 278196, 280108, 341052, 420162, 840324, 6792619, 13585238, 20377857, 27170476, 40755714, 81511428]

約数ペア:

[(1, 81511428), (2, 40755714), (3, 27170476), (4, 20377857), (6, 13585238), (12, 6792619), (97, 840324), (194, 420162), (239, 341052), (291, 280108), (293, 278196), (388, 210081), (478, 170526), (582, 140054), (586, 139098), (717, 113684), (879, 92732), (956, 85263), (1164, 70027), (1172, 69549), (1434, 56842), (1758, 46366), (2868, 28421), (3516, 23183)]