66877760

素因数分解:

$2^6\times 5^1\times {\mathrm{208993}}^1$

素因数の和:209010

約数の個数: 28

約数和(自身を含む): 159253428

約数和(自身を除く): 92375668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 208993, 417986, 835972, 1044965, 1671944, 2089930, 3343888, 4179860, 6687776, 8359720, 13375552, 16719440, 33438880, 66877760]

約数ペア:

[(1, 66877760), (2, 33438880), (4, 16719440), (5, 13375552), (8, 8359720), (10, 6687776), (16, 4179860), (20, 3343888), (32, 2089930), (40, 1671944), (64, 1044965), (80, 835972), (160, 417986), (320, 208993)]