90294280

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{7121}}^1$

素因数の和:7449

約数の個数: 32

約数和(自身を含む): 203831640

約数和(自身を除く): 113537360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 7121, 12680, 14242, 28484, 35605, 56968, 71210, 142420, 284840, 2257357, 4514714, 9029428, 11286785, 18058856, 22573570, 45147140, 90294280]

約数ペア:

[(1, 90294280), (2, 45147140), (4, 22573570), (5, 18058856), (8, 11286785), (10, 9029428), (20, 4514714), (40, 2257357), (317, 284840), (634, 142420), (1268, 71210), (1585, 56968), (2536, 35605), (3170, 28484), (6340, 14242), (7121, 12680)]