81873855

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{12377}}^1$

素因数の和:12405

約数の個数: 48

約数和(自身を含む): 169331040

約数和(自身を除く): 87457185

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 6615, 12377, 37131, 61885, 86639, 111393, 185655, 259917, 334179, 433195, 556965, 606473, 779751, 1299585, 1670895, 1819419, 2339253, 3032365, 3898755, 5458257, 9097095, 11696265, 16374771, 27291285, 81873855]

約数ペア:

[(1, 81873855), (3, 27291285), (5, 16374771), (7, 11696265), (9, 9097095), (15, 5458257), (21, 3898755), (27, 3032365), (35, 2339253), (45, 1819419), (49, 1670895), (63, 1299585), (105, 779751), (135, 606473), (147, 556965), (189, 433195), (245, 334179), (315, 259917), (441, 185655), (735, 111393), (945, 86639), (1323, 61885), (2205, 37131), (6615, 12377)]