2391567280

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1\times {\mathrm{499}}^1$

素因数の和:1082

約数の個数: 80

約数和(自身を含む): 5624640000

約数和(自身を除く): 3233072720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 431, 499, 556, 695, 862, 998, 1112, 1390, 1724, 1996, 2155, 2224, 2495, 2780, 3448, 3992, 4310, 4990, 5560, 6896, 7984, 8620, 9980, 11120, 17240, 19960, 34480, 39920, 59909, 69361, 119818, 138722, 215069, 239636, 277444, 299545, 346805, 430138, 479272, 554888, 599090, 693610, 860276, 958544, 1075345, 1109776, 1198180, 1387220, 1720552, 2150690, 2396360, 2774440, 3441104, 4301380, 4792720, 5548880, 8602760, 17205520, 29894591, 59789182, 119578364, 149472955, 239156728, 298945910, 478313456, 597891820, 1195783640, 2391567280]

約数ペア:

[(1, 2391567280), (2, 1195783640), (4, 597891820), (5, 478313456), (8, 298945910), (10, 239156728), (16, 149472955), (20, 119578364), (40, 59789182), (80, 29894591), (139, 17205520), (278, 8602760), (431, 5548880), (499, 4792720), (556, 4301380), (695, 3441104), (862, 2774440), (998, 2396360), (1112, 2150690), (1390, 1720552), (1724, 1387220), (1996, 1198180), (2155, 1109776), (2224, 1075345), (2495, 958544), (2780, 860276), (3448, 693610), (3992, 599090), (4310, 554888), (4990, 479272), (5560, 430138), (6896, 346805), (7984, 299545), (8620, 277444), (9980, 239636), (11120, 215069), (17240, 138722), (19960, 119818), (34480, 69361), (39920, 59909)]