238661720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{1087}}^1$

素因数の和:1608

約数の個数: 64

約数和(自身を含む): 587520000

約数和(自身を除く): 348858280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 499, 998, 1087, 1996, 2174, 2495, 3992, 4348, 4990, 5435, 5489, 8696, 9980, 10870, 10978, 11957, 19960, 21740, 21956, 23914, 27445, 43480, 43912, 47828, 54890, 59785, 95656, 109780, 119570, 219560, 239140, 478280, 542413, 1084826, 2169652, 2712065, 4339304, 5424130, 5966543, 10848260, 11933086, 21696520, 23866172, 29832715, 47732344, 59665430, 119330860, 238661720]

約数ペア:

[(1, 238661720), (2, 119330860), (4, 59665430), (5, 47732344), (8, 29832715), (10, 23866172), (11, 21696520), (20, 11933086), (22, 10848260), (40, 5966543), (44, 5424130), (55, 4339304), (88, 2712065), (110, 2169652), (220, 1084826), (440, 542413), (499, 478280), (998, 239140), (1087, 219560), (1996, 119570), (2174, 109780), (2495, 95656), (3992, 59785), (4348, 54890), (4990, 47828), (5435, 43912), (5489, 43480), (8696, 27445), (9980, 23914), (10870, 21956), (10978, 21740), (11957, 19960)]