66680540

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{40169}}^1$

素因数の和:40261

約数の個数: 24

約数和(自身を含む): 141719760

約数和(自身を除く): 75039220

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 40169, 80338, 160676, 200845, 401690, 803380, 3334027, 6668054, 13336108, 16670135, 33340270, 66680540]

約数ペア:

[(1, 66680540), (2, 33340270), (4, 16670135), (5, 13336108), (10, 6668054), (20, 3334027), (83, 803380), (166, 401690), (332, 200845), (415, 160676), (830, 80338), (1660, 40169)]