81906244

素因数分解:

$2^2\times 7^2\times {\mathrm{509}}^1\times {\mathrm{821}}^1$

素因数の和:1348

約数の個数: 36

約数和(自身を含む): 167268780

約数和(自身を除く): 85362536

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 509, 821, 1018, 1642, 2036, 3284, 3563, 5747, 7126, 11494, 14252, 22988, 24941, 40229, 49882, 80458, 99764, 160916, 417889, 835778, 1671556, 2925223, 5850446, 11700892, 20476561, 40953122, 81906244]

約数ペア:

[(1, 81906244), (2, 40953122), (4, 20476561), (7, 11700892), (14, 5850446), (28, 2925223), (49, 1671556), (98, 835778), (196, 417889), (509, 160916), (821, 99764), (1018, 80458), (1642, 49882), (2036, 40229), (3284, 24941), (3563, 22988), (5747, 14252), (7126, 11494)]