491454470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{121949}}^1$

素因数の和:122000

約数の個数: 32

約数和(自身を含む): 983404800

約数和(自身を除く): 491950330

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 121949, 243898, 609745, 1219490, 1585337, 3170674, 3780419, 7560838, 7926685, 15853370, 18902095, 37804190, 49145447, 98290894, 245727235, 491454470]

約数ペア:

[(1, 491454470), (2, 245727235), (5, 98290894), (10, 49145447), (13, 37804190), (26, 18902095), (31, 15853370), (62, 7926685), (65, 7560838), (130, 3780419), (155, 3170674), (310, 1585337), (403, 1219490), (806, 609745), (2015, 243898), (4030, 121949)]