764128520

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 1741824000

約数和(自身を除く): 977695480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 349, 431, 508, 635, 698, 862, 1016, 1270, 1396, 1724, 1745, 2155, 2540, 2792, 3448, 3490, 4310, 5080, 6980, 8620, 13960, 17240, 44323, 54737, 88646, 109474, 150419, 177292, 218948, 221615, 273685, 300838, 354584, 437896, 443230, 547370, 601676, 752095, 886460, 1094740, 1203352, 1504190, 1772920, 2189480, 3008380, 6016760, 19103213, 38206426, 76412852, 95516065, 152825704, 191032130, 382064260, 764128520]

約数ペア:

[(1, 764128520), (2, 382064260), (4, 191032130), (5, 152825704), (8, 95516065), (10, 76412852), (20, 38206426), (40, 19103213), (127, 6016760), (254, 3008380), (349, 2189480), (431, 1772920), (508, 1504190), (635, 1203352), (698, 1094740), (862, 886460), (1016, 752095), (1270, 601676), (1396, 547370), (1724, 443230), (1745, 437896), (2155, 354584), (2540, 300838), (2792, 273685), (3448, 221615), (3490, 218948), (4310, 177292), (5080, 150419), (6980, 109474), (8620, 88646), (13960, 54737), (17240, 44323)]