80282020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44111}}^1$

素因数の和:44140

約数の個数: 48

約数和(自身を含む): 207502848

約数和(自身を除く): 127220828

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44111, 88222, 176444, 220555, 308777, 441110, 573443, 617554, 882220, 1146886, 1235108, 1543885, 2293772, 2867215, 3087770, 4014101, 5734430, 6175540, 8028202, 11468860, 16056404, 20070505, 40141010, 80282020]

約数ペア:

[(1, 80282020), (2, 40141010), (4, 20070505), (5, 16056404), (7, 11468860), (10, 8028202), (13, 6175540), (14, 5734430), (20, 4014101), (26, 3087770), (28, 2867215), (35, 2293772), (52, 1543885), (65, 1235108), (70, 1146886), (91, 882220), (130, 617554), (140, 573443), (182, 441110), (260, 308777), (364, 220555), (455, 176444), (910, 88222), (1820, 44111)]