18040280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19609}}^1$

素因数の和:19643

約数の個数: 32

約数和(自身を含む): 42357600

約数和(自身を除く): 24317320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 19609, 39218, 78436, 98045, 156872, 196090, 392180, 451007, 784360, 902014, 1804028, 2255035, 3608056, 4510070, 9020140, 18040280]

約数ペア:

[(1, 18040280), (2, 9020140), (4, 4510070), (5, 3608056), (8, 2255035), (10, 1804028), (20, 902014), (23, 784360), (40, 451007), (46, 392180), (92, 196090), (115, 156872), (184, 98045), (230, 78436), (460, 39218), (920, 19609)]