39990015

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 75243168

約数和(自身を除く): 35253153

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 197, 347, 585, 591, 985, 1041, 1735, 1773, 2561, 2955, 3123, 4511, 5205, 7683, 8865, 12805, 13533, 15615, 22555, 23049, 38415, 40599, 67665, 68359, 115245, 202995, 205077, 341795, 615231, 888667, 1025385, 2666001, 3076155, 4443335, 7998003, 13330005, 39990015]

約数ペア:

[(1, 39990015), (3, 13330005), (5, 7998003), (9, 4443335), (13, 3076155), (15, 2666001), (39, 1025385), (45, 888667), (65, 615231), (117, 341795), (195, 205077), (197, 202995), (347, 115245), (585, 68359), (591, 67665), (985, 40599), (1041, 38415), (1735, 23049), (1773, 22555), (2561, 15615), (2955, 13533), (3123, 12805), (4511, 8865), (5205, 7683)]