18423760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^2\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 60

約数和(自身を含む): 44225964

約数和(自身を除く): 25802204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 137, 164, 205, 274, 328, 410, 548, 656, 685, 820, 1096, 1370, 1640, 1681, 2192, 2740, 3280, 3362, 5480, 5617, 6724, 8405, 10960, 11234, 13448, 16810, 22468, 26896, 28085, 33620, 44936, 56170, 67240, 89872, 112340, 134480, 224680, 230297, 449360, 460594, 921188, 1151485, 1842376, 2302970, 3684752, 4605940, 9211880, 18423760]

約数ペア:

[(1, 18423760), (2, 9211880), (4, 4605940), (5, 3684752), (8, 2302970), (10, 1842376), (16, 1151485), (20, 921188), (40, 460594), (41, 449360), (80, 230297), (82, 224680), (137, 134480), (164, 112340), (205, 89872), (274, 67240), (328, 56170), (410, 44936), (548, 33620), (656, 28085), (685, 26896), (820, 22468), (1096, 16810), (1370, 13448), (1640, 11234), (1681, 10960), (2192, 8405), (2740, 6724), (3280, 5617), (3362, 5480)]