402090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1031}}^1$

素因数の和:1054

約数の個数: 32

約数和(自身を含む): 1040256

約数和(自身を除く): 638166

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 1031, 2062, 3093, 5155, 6186, 10310, 13403, 15465, 26806, 30930, 40209, 67015, 80418, 134030, 201045, 402090]

約数ペア:

[(1, 402090), (2, 201045), (3, 134030), (5, 80418), (6, 67015), (10, 40209), (13, 30930), (15, 26806), (26, 15465), (30, 13403), (39, 10310), (65, 6186), (78, 5155), (130, 3093), (195, 2062), (390, 1031)]