165894540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{394987}}^1$

素因数の和:395006

約数の個数: 48

約数和(自身を含む): 530863872

約数和(自身を除く): 364969332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 394987, 789974, 1184961, 1579948, 1974935, 2369922, 2764909, 3949870, 4739844, 5529818, 5924805, 7899740, 8294727, 11059636, 11849610, 13824545, 16589454, 23699220, 27649090, 33178908, 41473635, 55298180, 82947270, 165894540]

約数ペア:

[(1, 165894540), (2, 82947270), (3, 55298180), (4, 41473635), (5, 33178908), (6, 27649090), (7, 23699220), (10, 16589454), (12, 13824545), (14, 11849610), (15, 11059636), (20, 8294727), (21, 7899740), (28, 5924805), (30, 5529818), (35, 4739844), (42, 3949870), (60, 2764909), (70, 2369922), (84, 1974935), (105, 1579948), (140, 1184961), (210, 789974), (420, 394987)]