640004544

素因数分解:

$2^6\times 3^3\times {\mathrm{370373}}^1$

素因数の和:370394

約数の個数: 56

約数和(自身を含む): 1881499920

約数和(自身を除く): 1241495376

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 144, 192, 216, 288, 432, 576, 864, 1728, 370373, 740746, 1111119, 1481492, 2222238, 2962984, 3333357, 4444476, 5925968, 6666714, 8888952, 10000071, 11851936, 13333428, 17777904, 20000142, 23703872, 26666856, 35555808, 40000284, 53333712, 71111616, 80000568, 106667424, 160001136, 213334848, 320002272, 640004544]

約数ペア:

[(1, 640004544), (2, 320002272), (3, 213334848), (4, 160001136), (6, 106667424), (8, 80000568), (9, 71111616), (12, 53333712), (16, 40000284), (18, 35555808), (24, 26666856), (27, 23703872), (32, 20000142), (36, 17777904), (48, 13333428), (54, 11851936), (64, 10000071), (72, 8888952), (96, 6666714), (108, 5925968), (144, 4444476), (192, 3333357), (216, 2962984), (288, 2222238), (432, 1481492), (576, 1111119), (864, 740746), (1728, 370373)]