19782480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{593}}^1$

素因数の和:748

約数の個数: 80

約数和(自身を含む): 61871040

約数和(自身を除く): 42088560

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, 593, 695, 834, 1112, 1186, 1390, 1668, 1779, 2085, 2224, 2372, 2780, 2965, 3336, 3558, 4170, 4744, 5560, 5930, 6672, 7116, 8340, 8895, 9488, 11120, 11860, 14232, 16680, 17790, 23720, 28464, 33360, 35580, 47440, 71160, 82427, 142320, 164854, 247281, 329708, 412135, 494562, 659416, 824270, 989124, 1236405, 1318832, 1648540, 1978248, 2472810, 3297080, 3956496, 4945620, 6594160, 9891240, 19782480]

約数ペア:

[(1, 19782480), (2, 9891240), (3, 6594160), (4, 4945620), (5, 3956496), (6, 3297080), (8, 2472810), (10, 1978248), (12, 1648540), (15, 1318832), (16, 1236405), (20, 989124), (24, 824270), (30, 659416), (40, 494562), (48, 412135), (60, 329708), (80, 247281), (120, 164854), (139, 142320), (240, 82427), (278, 71160), (417, 47440), (556, 35580), (593, 33360), (695, 28464), (834, 23720), (1112, 17790), (1186, 16680), (1390, 14232), (1668, 11860), (1779, 11120), (2085, 9488), (2224, 8895), (2372, 8340), (2780, 7116), (2965, 6672), (3336, 5930), (3558, 5560), (4170, 4744)]