81620800

素因数分解:

$2^6\times 5^2\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:528

約数の個数: 84

約数和(自身を含む): 202834240

約数和(自身を除く): 121213440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 139, 160, 200, 278, 320, 367, 400, 556, 695, 734, 800, 1112, 1390, 1468, 1600, 1835, 2224, 2780, 2936, 3475, 3670, 4448, 5560, 5872, 6950, 7340, 8896, 9175, 11120, 11744, 13900, 14680, 18350, 22240, 23488, 27800, 29360, 36700, 44480, 51013, 55600, 58720, 73400, 102026, 111200, 117440, 146800, 204052, 222400, 255065, 293600, 408104, 510130, 587200, 816208, 1020260, 1275325, 1632416, 2040520, 2550650, 3264832, 4081040, 5101300, 8162080, 10202600, 16324160, 20405200, 40810400, 81620800]

約数ペア:

[(1, 81620800), (2, 40810400), (4, 20405200), (5, 16324160), (8, 10202600), (10, 8162080), (16, 5101300), (20, 4081040), (25, 3264832), (32, 2550650), (40, 2040520), (50, 1632416), (64, 1275325), (80, 1020260), (100, 816208), (139, 587200), (160, 510130), (200, 408104), (278, 293600), (320, 255065), (367, 222400), (400, 204052), (556, 146800), (695, 117440), (734, 111200), (800, 102026), (1112, 73400), (1390, 58720), (1468, 55600), (1600, 51013), (1835, 44480), (2224, 36700), (2780, 29360), (2936, 27800), (3475, 23488), (3670, 22240), (4448, 18350), (5560, 14680), (5872, 13900), (6950, 11744), (7340, 11120), (8896, 9175)]