31538720

素因数分解:

$2^5\times 5^1\times {\mathrm{197117}}^1$

素因数の和:197132

約数の個数: 24

約数和(自身を含む): 74510604

約数和(自身を除く): 42971884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197117, 394234, 788468, 985585, 1576936, 1971170, 3153872, 3942340, 6307744, 7884680, 15769360, 31538720]

約数ペア:

[(1, 31538720), (2, 15769360), (4, 7884680), (5, 6307744), (8, 3942340), (10, 3153872), (16, 1971170), (20, 1576936), (32, 985585), (40, 788468), (80, 394234), (160, 197117)]