81720898

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 154091520

約数和(自身を除く): 72370622

約数列:

[1, 2, 7, 14, 29, 31, 43, 58, 62, 86, 151, 203, 217, 301, 302, 406, 434, 602, 899, 1057, 1247, 1333, 1798, 2114, 2494, 2666, 4379, 4681, 6293, 6493, 8729, 8758, 9331, 9362, 12586, 12986, 17458, 18662, 30653, 32767, 38657, 45451, 61306, 65534, 77314, 90902, 135749, 188297, 201283, 270599, 271498, 376594, 402566, 541198, 950243, 1318079, 1408981, 1900486, 2636158, 2817962, 5837207, 11674414, 40860449, 81720898]

約数ペア:

[(1, 81720898), (2, 40860449), (7, 11674414), (14, 5837207), (29, 2817962), (31, 2636158), (43, 1900486), (58, 1408981), (62, 1318079), (86, 950243), (151, 541198), (203, 402566), (217, 376594), (301, 271498), (302, 270599), (406, 201283), (434, 188297), (602, 135749), (899, 90902), (1057, 77314), (1247, 65534), (1333, 61306), (1798, 45451), (2114, 38657), (2494, 32767), (2666, 30653), (4379, 18662), (4681, 17458), (6293, 12986), (6493, 12586), (8729, 9362), (8758, 9331)]