64077680

素因数分解:

$2^4\times 5^1\times {\mathrm{800971}}^1$

素因数の和:800984

約数の個数: 20

約数和(自身を含む): 148980792

約数和(自身を除く): 84903112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800971, 1601942, 3203884, 4004855, 6407768, 8009710, 12815536, 16019420, 32038840, 64077680]

約数ペア:

[(1, 64077680), (2, 32038840), (4, 16019420), (5, 12815536), (8, 8009710), (10, 6407768), (16, 4004855), (20, 3203884), (40, 1601942), (80, 800971)]