31328560

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1489}}^1$

素因数の和:1765

約数の個数: 40

約数和(自身を含む): 73164960

約数和(自身を除く): 41836400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 1489, 2104, 2630, 2978, 4208, 5260, 5956, 7445, 10520, 11912, 14890, 21040, 23824, 29780, 59560, 119120, 391607, 783214, 1566428, 1958035, 3132856, 3916070, 6265712, 7832140, 15664280, 31328560]

約数ペア:

[(1, 31328560), (2, 15664280), (4, 7832140), (5, 6265712), (8, 3916070), (10, 3132856), (16, 1958035), (20, 1566428), (40, 783214), (80, 391607), (263, 119120), (526, 59560), (1052, 29780), (1315, 23824), (1489, 21040), (2104, 14890), (2630, 11912), (2978, 10520), (4208, 7445), (5260, 5956)]