39805780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1811}}^1$

素因数の和:1984

約数の個数: 48

約数和(自身を含む): 96195456

約数和(自身を除く): 56389676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 1811, 2198, 3140, 3622, 4396, 5495, 7244, 9055, 10990, 12677, 18110, 21980, 25354, 36220, 50708, 63385, 126770, 253540, 284327, 568654, 1137308, 1421635, 1990289, 2843270, 3980578, 5686540, 7961156, 9951445, 19902890, 39805780]

約数ペア:

[(1, 39805780), (2, 19902890), (4, 9951445), (5, 7961156), (7, 5686540), (10, 3980578), (14, 2843270), (20, 1990289), (28, 1421635), (35, 1137308), (70, 568654), (140, 284327), (157, 253540), (314, 126770), (628, 63385), (785, 50708), (1099, 36220), (1570, 25354), (1811, 21980), (2198, 18110), (3140, 12677), (3622, 10990), (4396, 9055), (5495, 7244)]