250737520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{571}}^1$

素因数の和:1094

約数の個数: 80

約数和(自身を含む): 638352000

約数和(自身を除く): 387614480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 499, 571, 880, 998, 1142, 1996, 2284, 2495, 2855, 3992, 4568, 4990, 5489, 5710, 6281, 7984, 9136, 9980, 10978, 11420, 12562, 19960, 21956, 22840, 25124, 27445, 31405, 39920, 43912, 45680, 50248, 54890, 62810, 87824, 100496, 109780, 125620, 219560, 251240, 284929, 439120, 502480, 569858, 1139716, 1424645, 2279432, 2849290, 3134219, 4558864, 5698580, 6268438, 11397160, 12536876, 15671095, 22794320, 25073752, 31342190, 50147504, 62684380, 125368760, 250737520]

約数ペア:

[(1, 250737520), (2, 125368760), (4, 62684380), (5, 50147504), (8, 31342190), (10, 25073752), (11, 22794320), (16, 15671095), (20, 12536876), (22, 11397160), (40, 6268438), (44, 5698580), (55, 4558864), (80, 3134219), (88, 2849290), (110, 2279432), (176, 1424645), (220, 1139716), (440, 569858), (499, 502480), (571, 439120), (880, 284929), (998, 251240), (1142, 219560), (1996, 125620), (2284, 109780), (2495, 100496), (2855, 87824), (3992, 62810), (4568, 54890), (4990, 50248), (5489, 45680), (5710, 43912), (6281, 39920), (7984, 31405), (9136, 27445), (9980, 25124), (10978, 22840), (11420, 21956), (12562, 19960)]