28155780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156421}}^1$

素因数の和:156436

約数の個数: 36

約数和(自身を含む): 85406412

約数和(自身を除く): 57250632

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156421, 312842, 469263, 625684, 782105, 938526, 1407789, 1564210, 1877052, 2346315, 2815578, 3128420, 4692630, 5631156, 7038945, 9385260, 14077890, 28155780]

約数ペア:

[(1, 28155780), (2, 14077890), (3, 9385260), (4, 7038945), (5, 5631156), (6, 4692630), (9, 3128420), (10, 2815578), (12, 2346315), (15, 1877052), (18, 1564210), (20, 1407789), (30, 938526), (36, 782105), (45, 625684), (60, 469263), (90, 312842), (180, 156421)]