18317240

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2647}}^1$

素因数の和:2831

約数の個数: 32

約数和(自身を含む): 41467680

約数和(自身を除く): 23150440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2647, 3460, 5294, 6920, 10588, 13235, 21176, 26470, 52940, 105880, 457931, 915862, 1831724, 2289655, 3663448, 4579310, 9158620, 18317240]

約数ペア:

[(1, 18317240), (2, 9158620), (4, 4579310), (5, 3663448), (8, 2289655), (10, 1831724), (20, 915862), (40, 457931), (173, 105880), (346, 52940), (692, 26470), (865, 21176), (1384, 13235), (1730, 10588), (2647, 6920), (3460, 5294)]