199480970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{49499}}^1$

素因数の和:49550

約数の個数: 32

約数和(自身を含む): 399168000

約数和(自身を除く): 199687030

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 49499, 98998, 247495, 494990, 643487, 1286974, 1534469, 3068938, 3217435, 6434870, 7672345, 15344690, 19948097, 39896194, 99740485, 199480970]

約数ペア:

[(1, 199480970), (2, 99740485), (5, 39896194), (10, 19948097), (13, 15344690), (26, 7672345), (31, 6434870), (62, 3217435), (65, 3068938), (130, 1534469), (155, 1286974), (310, 643487), (403, 494990), (806, 247495), (2015, 98998), (4030, 49499)]