20161010840

素因数分解:

$2^3\times 5^1\times {\mathrm{42667}}^1\times {\mathrm{11813}}^1$

素因数の和:54491

約数の個数: 32

約数和(自身を含む): 45367177680

約数和(自身を除く): 25206166840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 11813, 23626, 42667, 47252, 59065, 85334, 94504, 118130, 170668, 213335, 236260, 341336, 426670, 472520, 853340, 1706680, 504025271, 1008050542, 2016101084, 2520126355, 4032202168, 5040252710, 10080505420, 20161010840]

約数ペア:

[(1, 20161010840), (2, 10080505420), (4, 5040252710), (5, 4032202168), (8, 2520126355), (10, 2016101084), (20, 1008050542), (40, 504025271), (11813, 1706680), (23626, 853340), (42667, 472520), (47252, 426670), (59065, 341336), (85334, 236260), (94504, 213335), (118130, 170668)]