81949220

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{49367}}^1$

素因数の和:49459

約数の個数: 24

約数和(自身を含む): 174170304

約数和(自身を除く): 92221084

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 49367, 98734, 197468, 246835, 493670, 987340, 4097461, 8194922, 16389844, 20487305, 40974610, 81949220]

約数ペア:

[(1, 81949220), (2, 40974610), (4, 20487305), (5, 16389844), (10, 8194922), (20, 4097461), (83, 987340), (166, 493670), (332, 246835), (415, 197468), (830, 98734), (1660, 49367)]