18206800

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{1979}}^1$

素因数の和:2020

約数の個数: 60

約数和(自身を含む): 45666720

約数和(自身を除く): 27459920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 1979, 2300, 3958, 4600, 7916, 9200, 9895, 15832, 19790, 31664, 39580, 45517, 49475, 79160, 91034, 98950, 158320, 182068, 197900, 227585, 364136, 395800, 455170, 728272, 791600, 910340, 1137925, 1820680, 2275850, 3641360, 4551700, 9103400, 18206800]

約数ペア:

[(1, 18206800), (2, 9103400), (4, 4551700), (5, 3641360), (8, 2275850), (10, 1820680), (16, 1137925), (20, 910340), (23, 791600), (25, 728272), (40, 455170), (46, 395800), (50, 364136), (80, 227585), (92, 197900), (100, 182068), (115, 158320), (184, 98950), (200, 91034), (230, 79160), (368, 49475), (400, 45517), (460, 39580), (575, 31664), (920, 19790), (1150, 15832), (1840, 9895), (1979, 9200), (2300, 7916), (3958, 4600)]