20886710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:777

約数の個数: 48

約数和(自身を含む): 43164576

約数和(自身を除く): 22277866

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 727, 845, 1105, 1454, 1690, 2210, 2873, 3635, 5746, 7270, 9451, 12359, 14365, 18902, 24718, 28730, 47255, 61795, 94510, 122863, 123590, 160667, 245726, 321334, 614315, 803335, 1228630, 1606670, 2088671, 4177342, 10443355, 20886710]

約数ペア:

[(1, 20886710), (2, 10443355), (5, 4177342), (10, 2088671), (13, 1606670), (17, 1228630), (26, 803335), (34, 614315), (65, 321334), (85, 245726), (130, 160667), (169, 123590), (170, 122863), (221, 94510), (338, 61795), (442, 47255), (727, 28730), (845, 24718), (1105, 18902), (1454, 14365), (1690, 12359), (2210, 9451), (2873, 7270), (3635, 5746)]