65990950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:753

約数の個数: 48

約数和(自身を含む): 128964960

約数和(自身を除く): 62974010

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 71, 142, 145, 290, 355, 641, 710, 725, 1282, 1450, 1775, 2059, 3205, 3550, 4118, 6410, 10295, 16025, 18589, 20590, 32050, 37178, 45511, 51475, 91022, 92945, 102950, 185890, 227555, 455110, 464725, 929450, 1137775, 1319819, 2275550, 2639638, 6599095, 13198190, 32995475, 65990950]

約数ペア:

[(1, 65990950), (2, 32995475), (5, 13198190), (10, 6599095), (25, 2639638), (29, 2275550), (50, 1319819), (58, 1137775), (71, 929450), (142, 464725), (145, 455110), (290, 227555), (355, 185890), (641, 102950), (710, 92945), (725, 91022), (1282, 51475), (1450, 45511), (1775, 37178), (2059, 32050), (3205, 20590), (3550, 18589), (4118, 16025), (6410, 10295)]