28318472

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5557}}^1$

素因数の和:5590

約数の個数: 48

約数和(自身を含む): 66529260

約数和(自身を除く): 38210788

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 5096, 5557, 11114, 22228, 38899, 44456, 72241, 77798, 144482, 155596, 272293, 288964, 311192, 505687, 544586, 577928, 1011374, 1089172, 2022748, 2178344, 3539809, 4045496, 7079618, 14159236, 28318472]

約数ペア:

[(1, 28318472), (2, 14159236), (4, 7079618), (7, 4045496), (8, 3539809), (13, 2178344), (14, 2022748), (26, 1089172), (28, 1011374), (49, 577928), (52, 544586), (56, 505687), (91, 311192), (98, 288964), (104, 272293), (182, 155596), (196, 144482), (364, 77798), (392, 72241), (637, 44456), (728, 38899), (1274, 22228), (2548, 11114), (5096, 5557)]