72279640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17891}}^1$

素因数の和:18003

約数の個数: 32

約数和(自身を含む): 164248560

約数和(自身を除く): 91968920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17891, 35782, 71564, 89455, 143128, 178910, 357820, 715640, 1806991, 3613982, 7227964, 9034955, 14455928, 18069910, 36139820, 72279640]

約数ペア:

[(1, 72279640), (2, 36139820), (4, 18069910), (5, 14455928), (8, 9034955), (10, 7227964), (20, 3613982), (40, 1806991), (101, 715640), (202, 357820), (404, 178910), (505, 143128), (808, 89455), (1010, 71564), (2020, 35782), (4040, 17891)]