21801291280

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3283327}}^1$

素因数の和:3283423

約数の個数: 40

約数和(自身を含む): 51298716672

約数和(自身を除く): 29497425392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 3283327, 6566654, 13133308, 16416635, 26266616, 32833270, 52533232, 65666540, 131333080, 262666160, 272516141, 545032282, 1090064564, 1362580705, 2180129128, 2725161410, 4360258256, 5450322820, 10900645640, 21801291280]

約数ペア:

[(1, 21801291280), (2, 10900645640), (4, 5450322820), (5, 4360258256), (8, 2725161410), (10, 2180129128), (16, 1362580705), (20, 1090064564), (40, 545032282), (80, 272516141), (83, 262666160), (166, 131333080), (332, 65666540), (415, 52533232), (664, 32833270), (830, 26266616), (1328, 16416635), (1660, 13133308), (3320, 6566654), (6640, 3283327)]