81123784

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{9227}}^1$

素因数の和:9397

約数の個数: 32

約数和(自身を含む): 174962880

約数和(自身を除く): 93839096

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 4396, 8792, 9227, 18454, 36908, 64589, 73816, 129178, 258356, 516712, 1448639, 2897278, 5794556, 10140473, 11589112, 20280946, 40561892, 81123784]

約数ペア:

[(1, 81123784), (2, 40561892), (4, 20280946), (7, 11589112), (8, 10140473), (14, 5794556), (28, 2897278), (56, 1448639), (157, 516712), (314, 258356), (628, 129178), (1099, 73816), (1256, 64589), (2198, 36908), (4396, 18454), (8792, 9227)]