90123456

素因数分解:

$2^6\times 3^1\times {\mathrm{367}}^1\times {\mathrm{1279}}^1$

素因数の和:1661

約数の個数: 56

約数和(自身を含む): 239288320

約数和(自身を除く): 149164864

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192, 367, 734, 1101, 1279, 1468, 2202, 2558, 2936, 3837, 4404, 5116, 5872, 7674, 8808, 10232, 11744, 15348, 17616, 20464, 23488, 30696, 35232, 40928, 61392, 70464, 81856, 122784, 245568, 469393, 938786, 1408179, 1877572, 2816358, 3755144, 5632716, 7510288, 11265432, 15020576, 22530864, 30041152, 45061728, 90123456]

約数ペア:

[(1, 90123456), (2, 45061728), (3, 30041152), (4, 22530864), (6, 15020576), (8, 11265432), (12, 7510288), (16, 5632716), (24, 3755144), (32, 2816358), (48, 1877572), (64, 1408179), (96, 938786), (192, 469393), (367, 245568), (734, 122784), (1101, 81856), (1279, 70464), (1468, 61392), (2202, 40928), (2558, 35232), (2936, 30696), (3837, 23488), (4404, 20464), (5116, 17616), (5872, 15348), (7674, 11744), (8808, 10232)]