81258268

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31891}}^1$

素因数の和:31922

約数の個数: 36

約数和(自身を含む): 178148712

約数和(自身を除く): 96890444

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 31891, 63782, 127564, 223237, 414583, 446474, 829166, 892948, 1562659, 1658332, 2902081, 3125318, 5804162, 6250636, 11608324, 20314567, 40629134, 81258268]

約数ペア:

[(1, 81258268), (2, 40629134), (4, 20314567), (7, 11608324), (13, 6250636), (14, 5804162), (26, 3125318), (28, 2902081), (49, 1658332), (52, 1562659), (91, 892948), (98, 829166), (182, 446474), (196, 414583), (364, 223237), (637, 127564), (1274, 63782), (2548, 31891)]