80680900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:733

約数の個数: 72

約数和(自身を含む): 185613120

約数和(自身を除く): 104932220

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 43, 50, 58, 86, 100, 116, 145, 172, 215, 290, 430, 580, 647, 725, 860, 1075, 1247, 1294, 1450, 2150, 2494, 2588, 2900, 3235, 4300, 4988, 6235, 6470, 12470, 12940, 16175, 18763, 24940, 27821, 31175, 32350, 37526, 55642, 62350, 64700, 75052, 93815, 111284, 124700, 139105, 187630, 278210, 375260, 469075, 556420, 695525, 806809, 938150, 1391050, 1613618, 1876300, 2782100, 3227236, 4034045, 8068090, 16136180, 20170225, 40340450, 80680900]

約数ペア:

[(1, 80680900), (2, 40340450), (4, 20170225), (5, 16136180), (10, 8068090), (20, 4034045), (25, 3227236), (29, 2782100), (43, 1876300), (50, 1613618), (58, 1391050), (86, 938150), (100, 806809), (116, 695525), (145, 556420), (172, 469075), (215, 375260), (290, 278210), (430, 187630), (580, 139105), (647, 124700), (725, 111284), (860, 93815), (1075, 75052), (1247, 64700), (1294, 62350), (1450, 55642), (2150, 37526), (2494, 32350), (2588, 31175), (2900, 27821), (3235, 24940), (4300, 18763), (4988, 16175), (6235, 12940), (6470, 12470)]