838656460

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1\times {\mathrm{997}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 1781597664

約数和(自身を除く): 942941204

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 307, 548, 614, 685, 997, 1228, 1370, 1535, 1994, 2740, 3070, 3988, 4985, 6140, 9970, 19940, 42059, 84118, 136589, 168236, 210295, 273178, 306079, 420590, 546356, 612158, 682945, 841180, 1224316, 1365890, 1530395, 2731780, 3060790, 6121580, 41932823, 83865646, 167731292, 209664115, 419328230, 838656460]

約数ペア:

[(1, 838656460), (2, 419328230), (4, 209664115), (5, 167731292), (10, 83865646), (20, 41932823), (137, 6121580), (274, 3060790), (307, 2731780), (548, 1530395), (614, 1365890), (685, 1224316), (997, 841180), (1228, 682945), (1370, 612158), (1535, 546356), (1994, 420590), (2740, 306079), (3070, 273178), (3988, 210295), (4985, 168236), (6140, 136589), (9970, 84118), (19940, 42059)]