18228640

素因数分解:

$2^5\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1931}}^1$

素因数の和:2005

約数の個数: 48

約数和(自身を含む): 43817760

約数和(自身を除く): 25589120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 80, 118, 160, 236, 295, 472, 590, 944, 1180, 1888, 1931, 2360, 3862, 4720, 7724, 9440, 9655, 15448, 19310, 30896, 38620, 61792, 77240, 113929, 154480, 227858, 308960, 455716, 569645, 911432, 1139290, 1822864, 2278580, 3645728, 4557160, 9114320, 18228640]

約数ペア:

[(1, 18228640), (2, 9114320), (4, 4557160), (5, 3645728), (8, 2278580), (10, 1822864), (16, 1139290), (20, 911432), (32, 569645), (40, 455716), (59, 308960), (80, 227858), (118, 154480), (160, 113929), (236, 77240), (295, 61792), (472, 38620), (590, 30896), (944, 19310), (1180, 15448), (1888, 9655), (1931, 9440), (2360, 7724), (3862, 4720)]