637760

素因数分解:

$2^6\times 5^1\times {\mathrm{1993}}^1$

素因数の和:2010

約数の個数: 28

約数和(自身を含む): 1519428

約数和(自身を除く): 881668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1993, 3986, 7972, 9965, 15944, 19930, 31888, 39860, 63776, 79720, 127552, 159440, 318880, 637760]

約数ペア:

[(1, 637760), (2, 318880), (4, 159440), (5, 127552), (8, 79720), (10, 63776), (16, 39860), (20, 31888), (32, 19930), (40, 15944), (64, 9965), (80, 7972), (160, 3986), (320, 1993)]