20147685488

素因数分解:

$2^4\times 7^1\times {\mathrm{809}}^1\times {\mathrm{222361}}^1$

素因数の和:223185

約数の個数: 40

約数和(自身を含む): 44668078560

約数和(自身を除く): 24520393072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 809, 1618, 3236, 5663, 6472, 11326, 12944, 22652, 45304, 90608, 222361, 444722, 889444, 1556527, 1778888, 3113054, 3557776, 6226108, 12452216, 24904432, 179890049, 359780098, 719560196, 1259230343, 1439120392, 2518460686, 2878240784, 5036921372, 10073842744, 20147685488]

約数ペア:

[(1, 20147685488), (2, 10073842744), (4, 5036921372), (7, 2878240784), (8, 2518460686), (14, 1439120392), (16, 1259230343), (28, 719560196), (56, 359780098), (112, 179890049), (809, 24904432), (1618, 12452216), (3236, 6226108), (5663, 3557776), (6472, 3113054), (11326, 1778888), (12944, 1556527), (22652, 889444), (45304, 444722), (90608, 222361)]