380005990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1021}}^1$

素因数の和:1457

約数の個数: 64

約数和(自身を含む): 844744320

約数和(自身を除く): 464738330

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 409, 455, 818, 910, 1021, 2042, 2045, 2863, 4090, 5105, 5317, 5726, 7147, 10210, 10634, 13273, 14294, 14315, 26546, 26585, 28630, 35735, 37219, 53170, 66365, 71470, 74438, 92911, 132730, 185822, 186095, 372190, 417589, 464555, 835178, 929110, 2087945, 2923123, 4175890, 5428657, 5846246, 10857314, 14615615, 27143285, 29231230, 38000599, 54286570, 76001198, 190002995, 380005990]

約数ペア:

[(1, 380005990), (2, 190002995), (5, 76001198), (7, 54286570), (10, 38000599), (13, 29231230), (14, 27143285), (26, 14615615), (35, 10857314), (65, 5846246), (70, 5428657), (91, 4175890), (130, 2923123), (182, 2087945), (409, 929110), (455, 835178), (818, 464555), (910, 417589), (1021, 372190), (2042, 186095), (2045, 185822), (2863, 132730), (4090, 92911), (5105, 74438), (5317, 71470), (5726, 66365), (7147, 53170), (10210, 37219), (10634, 35735), (13273, 28630), (14294, 26585), (14315, 26546)]