81505928

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{63281}}^1$

素因数の和:63317

約数の個数: 32

約数和(自身を含む): 182252160

約数和(自身を除く): 100746232

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 63281, 126562, 253124, 442967, 506248, 885934, 1455463, 1771868, 2910926, 3543736, 5821852, 10188241, 11643704, 20376482, 40752964, 81505928]

約数ペア:

[(1, 81505928), (2, 40752964), (4, 20376482), (7, 11643704), (8, 10188241), (14, 5821852), (23, 3543736), (28, 2910926), (46, 1771868), (56, 1455463), (92, 885934), (161, 506248), (184, 442967), (322, 253124), (644, 126562), (1288, 63281)]