12643440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{379}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 39580800

約数和(自身を除く): 26937360

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, 379, 417, 556, 695, 758, 834, 1112, 1137, 1390, 1516, 1668, 1895, 2085, 2224, 2274, 2780, 3032, 3336, 3790, 4170, 4548, 5560, 5685, 6064, 6672, 7580, 8340, 9096, 11120, 11370, 15160, 16680, 18192, 22740, 30320, 33360, 45480, 52681, 90960, 105362, 158043, 210724, 263405, 316086, 421448, 526810, 632172, 790215, 842896, 1053620, 1264344, 1580430, 2107240, 2528688, 3160860, 4214480, 6321720, 12643440]

約数ペア:

[(1, 12643440), (2, 6321720), (3, 4214480), (4, 3160860), (5, 2528688), (6, 2107240), (8, 1580430), (10, 1264344), (12, 1053620), (15, 842896), (16, 790215), (20, 632172), (24, 526810), (30, 421448), (40, 316086), (48, 263405), (60, 210724), (80, 158043), (120, 105362), (139, 90960), (240, 52681), (278, 45480), (379, 33360), (417, 30320), (556, 22740), (695, 18192), (758, 16680), (834, 15160), (1112, 11370), (1137, 11120), (1390, 9096), (1516, 8340), (1668, 7580), (1895, 6672), (2085, 6064), (2224, 5685), (2274, 5560), (2780, 4548), (3032, 4170), (3336, 3790)]