640006272

素因数分解:

$2^7\times 3^4\times {\mathrm{61729}}^1$

素因数の和:61755

約数の個数: 80

約数和(自身を含む): 1904679150

約数和(自身を除く): 1264672878

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 288, 324, 384, 432, 576, 648, 864, 1152, 1296, 1728, 2592, 3456, 5184, 10368, 61729, 123458, 185187, 246916, 370374, 493832, 555561, 740748, 987664, 1111122, 1481496, 1666683, 1975328, 2222244, 2962992, 3333366, 3950656, 4444488, 5000049, 5925984, 6666732, 7901312, 8888976, 10000098, 11851968, 13333464, 17777952, 20000196, 23703936, 26666928, 35555904, 40000392, 53333856, 71111808, 80000784, 106667712, 160001568, 213335424, 320003136, 640006272]

約数ペア:

[(1, 640006272), (2, 320003136), (3, 213335424), (4, 160001568), (6, 106667712), (8, 80000784), (9, 71111808), (12, 53333856), (16, 40000392), (18, 35555904), (24, 26666928), (27, 23703936), (32, 20000196), (36, 17777952), (48, 13333464), (54, 11851968), (64, 10000098), (72, 8888976), (81, 7901312), (96, 6666732), (108, 5925984), (128, 5000049), (144, 4444488), (162, 3950656), (192, 3333366), (216, 2962992), (288, 2222244), (324, 1975328), (384, 1666683), (432, 1481496), (576, 1111122), (648, 987664), (864, 740748), (1152, 555561), (1296, 493832), (1728, 370374), (2592, 246916), (3456, 185187), (5184, 123458), (10368, 61729)]