21050160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:786

約数の個数: 80

約数和(自身を含む): 65829120

約数和(自身を除く): 44778960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 139, 240, 278, 417, 556, 631, 695, 834, 1112, 1262, 1390, 1668, 1893, 2085, 2224, 2524, 2780, 3155, 3336, 3786, 4170, 5048, 5560, 6310, 6672, 7572, 8340, 9465, 10096, 11120, 12620, 15144, 16680, 18930, 25240, 30288, 33360, 37860, 50480, 75720, 87709, 151440, 175418, 263127, 350836, 438545, 526254, 701672, 877090, 1052508, 1315635, 1403344, 1754180, 2105016, 2631270, 3508360, 4210032, 5262540, 7016720, 10525080, 21050160]

約数ペア:

[(1, 21050160), (2, 10525080), (3, 7016720), (4, 5262540), (5, 4210032), (6, 3508360), (8, 2631270), (10, 2105016), (12, 1754180), (15, 1403344), (16, 1315635), (20, 1052508), (24, 877090), (30, 701672), (40, 526254), (48, 438545), (60, 350836), (80, 263127), (120, 175418), (139, 151440), (240, 87709), (278, 75720), (417, 50480), (556, 37860), (631, 33360), (695, 30288), (834, 25240), (1112, 18930), (1262, 16680), (1390, 15144), (1668, 12620), (1893, 11120), (2085, 10096), (2224, 9465), (2524, 8340), (2780, 7572), (3155, 6672), (3336, 6310), (3786, 5560), (4170, 5048)]