81475430

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1979}}^1$

素因数の和:2188

約数の個数: 32

約数和(自身を含む): 153964800

約数和(自身を除く): 72489370

約数列:

[1, 2, 5, 10, 23, 46, 115, 179, 230, 358, 895, 1790, 1979, 3958, 4117, 8234, 9895, 19790, 20585, 41170, 45517, 91034, 227585, 354241, 455170, 708482, 1771205, 3542410, 8147543, 16295086, 40737715, 81475430]

約数ペア:

[(1, 81475430), (2, 40737715), (5, 16295086), (10, 8147543), (23, 3542410), (46, 1771205), (115, 708482), (179, 455170), (230, 354241), (358, 227585), (895, 91034), (1790, 45517), (1979, 41170), (3958, 20585), (4117, 19790), (8234, 9895)]