31912240

素因数分解:

$2^4\times 5^1\times {\mathrm{398903}}^1$

素因数の和:398916

約数の個数: 20

約数和(自身を含む): 74196144

約数和(自身を除く): 42283904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398903, 797806, 1595612, 1994515, 3191224, 3989030, 6382448, 7978060, 15956120, 31912240]

約数ペア:

[(1, 31912240), (2, 15956120), (4, 7978060), (5, 6382448), (8, 3989030), (10, 3191224), (16, 1994515), (20, 1595612), (40, 797806), (80, 398903)]