399476415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1031}}^1\times {\mathrm{1987}}^1$

素因数の和:3039

約数の個数: 32

約数和(自身を含む): 689342976

約数和(自身を除く): 289866561

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 1031, 1987, 3093, 5155, 5961, 9935, 13403, 15465, 25831, 29805, 40209, 67015, 77493, 129155, 201045, 387465, 2048597, 6145791, 10242985, 26631761, 30728955, 79895283, 133158805, 399476415]

約数ペア:

[(1, 399476415), (3, 133158805), (5, 79895283), (13, 30728955), (15, 26631761), (39, 10242985), (65, 6145791), (195, 2048597), (1031, 387465), (1987, 201045), (3093, 129155), (5155, 77493), (5961, 67015), (9935, 40209), (13403, 29805), (15465, 25831)]