20181763640

素因数分解:

$2^3\times 5^1\times {\mathrm{28201}}^1\times {\mathrm{17891}}^1$

素因数の和:46103

約数の個数: 32

約数和(自身を含む): 45413116560

約数和(自身を除く): 25231352920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 17891, 28201, 35782, 56402, 71564, 89455, 112804, 141005, 143128, 178910, 225608, 282010, 357820, 564020, 715640, 1128040, 504544091, 1009088182, 2018176364, 2522720455, 4036352728, 5045440910, 10090881820, 20181763640]

約数ペア:

[(1, 20181763640), (2, 10090881820), (4, 5045440910), (5, 4036352728), (8, 2522720455), (10, 2018176364), (20, 1009088182), (40, 504544091), (17891, 1128040), (28201, 715640), (35782, 564020), (56402, 357820), (71564, 282010), (89455, 225608), (112804, 178910), (141005, 143128)]