81065140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{1867}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 184528512

約数和(自身を除く): 103463372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 167, 260, 334, 668, 835, 1670, 1867, 2171, 3340, 3734, 4342, 7468, 8684, 9335, 10855, 18670, 21710, 24271, 37340, 43420, 48542, 97084, 121355, 242710, 311789, 485420, 623578, 1247156, 1558945, 3117890, 4053257, 6235780, 8106514, 16213028, 20266285, 40532570, 81065140]

約数ペア:

[(1, 81065140), (2, 40532570), (4, 20266285), (5, 16213028), (10, 8106514), (13, 6235780), (20, 4053257), (26, 3117890), (52, 1558945), (65, 1247156), (130, 623578), (167, 485420), (260, 311789), (334, 242710), (668, 121355), (835, 97084), (1670, 48542), (1867, 43420), (2171, 37340), (3340, 24271), (3734, 21710), (4342, 18670), (7468, 10855), (8684, 9335)]