81009490

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 148137984

約数和(自身を除く): 67128494

約数列:

[1, 2, 5, 10, 127, 227, 254, 281, 454, 562, 635, 1135, 1270, 1405, 2270, 2810, 28829, 35687, 57658, 63787, 71374, 127574, 144145, 178435, 288290, 318935, 356870, 637870, 8100949, 16201898, 40504745, 81009490]

約数ペア:

[(1, 81009490), (2, 40504745), (5, 16201898), (10, 8100949), (127, 637870), (227, 356870), (254, 318935), (281, 288290), (454, 178435), (562, 144145), (635, 127574), (1135, 71374), (1270, 63787), (1405, 57658), (2270, 35687), (2810, 28829)]