64335280

素因数分解:

$2^4\times 5^1\times {\mathrm{804191}}^1$

素因数の和:804204

約数の個数: 20

約数和(自身を含む): 149579712

約数和(自身を除く): 85244432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 804191, 1608382, 3216764, 4020955, 6433528, 8041910, 12867056, 16083820, 32167640, 64335280]

約数ペア:

[(1, 64335280), (2, 32167640), (4, 16083820), (5, 12867056), (8, 8041910), (10, 6433528), (16, 4020955), (20, 3216764), (40, 1608382), (80, 804191)]