20738040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4019}}^1$

素因数の和:4076

約数の個数: 64

約数和(自身を含む): 63676800

約数和(自身を除く): 42938760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4019, 5160, 8038, 12057, 16076, 20095, 24114, 32152, 40190, 48228, 60285, 80380, 96456, 120570, 160760, 172817, 241140, 345634, 482280, 518451, 691268, 864085, 1036902, 1382536, 1728170, 2073804, 2592255, 3456340, 4147608, 5184510, 6912680, 10369020, 20738040]

約数ペア:

[(1, 20738040), (2, 10369020), (3, 6912680), (4, 5184510), (5, 4147608), (6, 3456340), (8, 2592255), (10, 2073804), (12, 1728170), (15, 1382536), (20, 1036902), (24, 864085), (30, 691268), (40, 518451), (43, 482280), (60, 345634), (86, 241140), (120, 172817), (129, 160760), (172, 120570), (215, 96456), (258, 80380), (344, 60285), (430, 48228), (516, 40190), (645, 32152), (860, 24114), (1032, 20095), (1290, 16076), (1720, 12057), (2580, 8038), (4019, 5160)]