64601720

素因数分解:

$2^3\times 5^1\times {\mathrm{1615043}}^1$

素因数の和:1615054

約数の個数: 16

約数和(自身を含む): 145353960

約数和(自身を除く): 80752240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1615043, 3230086, 6460172, 8075215, 12920344, 16150430, 32300860, 64601720]

約数ペア:

[(1, 64601720), (2, 32300860), (4, 16150430), (5, 12920344), (8, 8075215), (10, 6460172), (20, 3230086), (40, 1615043)]