20305665

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{853}}^1$

素因数の和:910

約数の個数: 36

約数和(自身を含む): 36836436

約数和(自身を除く): 16530771

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 853, 1035, 1587, 2559, 2645, 4265, 4761, 7677, 7935, 12795, 19619, 23805, 38385, 58857, 98095, 176571, 294285, 451237, 882855, 1353711, 2256185, 4061133, 6768555, 20305665]

約数ペア:

[(1, 20305665), (3, 6768555), (5, 4061133), (9, 2256185), (15, 1353711), (23, 882855), (45, 451237), (69, 294285), (115, 176571), (207, 98095), (345, 58857), (529, 38385), (853, 23805), (1035, 19619), (1587, 12795), (2559, 7935), (2645, 7677), (4265, 4761)]