73291880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 169361280

約数和(自身を除く): 96069400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 131, 142, 197, 262, 284, 355, 394, 524, 568, 655, 710, 788, 985, 1048, 1310, 1420, 1576, 1970, 2620, 2840, 3940, 5240, 7880, 9301, 13987, 18602, 25807, 27974, 37204, 46505, 51614, 55948, 69935, 74408, 93010, 103228, 111896, 129035, 139870, 186020, 206456, 258070, 279740, 372040, 516140, 559480, 1032280, 1832297, 3664594, 7329188, 9161485, 14658376, 18322970, 36645940, 73291880]

約数ペア:

[(1, 73291880), (2, 36645940), (4, 18322970), (5, 14658376), (8, 9161485), (10, 7329188), (20, 3664594), (40, 1832297), (71, 1032280), (131, 559480), (142, 516140), (197, 372040), (262, 279740), (284, 258070), (355, 206456), (394, 186020), (524, 139870), (568, 129035), (655, 111896), (710, 103228), (788, 93010), (985, 74408), (1048, 69935), (1310, 55948), (1420, 51614), (1576, 46505), (1970, 37204), (2620, 27974), (2840, 25807), (3940, 18602), (5240, 13987), (7880, 9301)]