30781695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4129}}^1$

素因数の和:4215

約数の個数: 32

約数和(自身を含む): 57093120

約数和(自身を除く): 26311425

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 4129, 7455, 12387, 20645, 28903, 61935, 86709, 144515, 293159, 433545, 879477, 1465795, 2052113, 4397385, 6156339, 10260565, 30781695]

約数ペア:

[(1, 30781695), (3, 10260565), (5, 6156339), (7, 4397385), (15, 2052113), (21, 1465795), (35, 879477), (71, 433545), (105, 293159), (213, 144515), (355, 86709), (497, 61935), (1065, 28903), (1491, 20645), (2485, 12387), (4129, 7455)]