68772860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{20347}}^1$

素因数の和:20382

約数の個数: 36

約数和(自身を含む): 156394728

約数和(自身を除く): 87621868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 20347, 40694, 81388, 101735, 203470, 264511, 406940, 529022, 1058044, 1322555, 2645110, 3438643, 5290220, 6877286, 13754572, 17193215, 34386430, 68772860]

約数ペア:

[(1, 68772860), (2, 34386430), (4, 17193215), (5, 13754572), (10, 6877286), (13, 5290220), (20, 3438643), (26, 2645110), (52, 1322555), (65, 1058044), (130, 529022), (169, 406940), (260, 264511), (338, 203470), (676, 101735), (845, 81388), (1690, 40694), (3380, 20347)]