18653920

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 47573568

約数和(自身を除く): 28919648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 46, 74, 80, 92, 115, 137, 148, 160, 184, 185, 230, 274, 296, 368, 370, 460, 548, 592, 685, 736, 740, 851, 920, 1096, 1184, 1370, 1480, 1702, 1840, 2192, 2740, 2960, 3151, 3404, 3680, 4255, 4384, 5069, 5480, 5920, 6302, 6808, 8510, 10138, 10960, 12604, 13616, 15755, 17020, 20276, 21920, 25208, 25345, 27232, 31510, 34040, 40552, 50416, 50690, 63020, 68080, 81104, 100832, 101380, 116587, 126040, 136160, 162208, 202760, 233174, 252080, 405520, 466348, 504160, 582935, 811040, 932696, 1165870, 1865392, 2331740, 3730784, 4663480, 9326960, 18653920]

約数ペア:

[(1, 18653920), (2, 9326960), (4, 4663480), (5, 3730784), (8, 2331740), (10, 1865392), (16, 1165870), (20, 932696), (23, 811040), (32, 582935), (37, 504160), (40, 466348), (46, 405520), (74, 252080), (80, 233174), (92, 202760), (115, 162208), (137, 136160), (148, 126040), (160, 116587), (184, 101380), (185, 100832), (230, 81104), (274, 68080), (296, 63020), (368, 50690), (370, 50416), (460, 40552), (548, 34040), (592, 31510), (685, 27232), (736, 25345), (740, 25208), (851, 21920), (920, 20276), (1096, 17020), (1184, 15755), (1370, 13616), (1480, 12604), (1702, 10960), (1840, 10138), (2192, 8510), (2740, 6808), (2960, 6302), (3151, 5920), (3404, 5480), (3680, 5069), (4255, 4384)]