216178620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{514711}}^1$

素因数の和:514730

約数の個数: 48

約数和(自身を含む): 691772928

約数和(自身を除く): 475594308

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, 514711, 1029422, 1544133, 2058844, 2573555, 3088266, 3602977, 5147110, 6176532, 7205954, 7720665, 10294220, 10808931, 14411908, 15441330, 18014885, 21617862, 30882660, 36029770, 43235724, 54044655, 72059540, 108089310, 216178620]

約数ペア:

[(1, 216178620), (2, 108089310), (3, 72059540), (4, 54044655), (5, 43235724), (6, 36029770), (7, 30882660), (10, 21617862), (12, 18014885), (14, 15441330), (15, 14411908), (20, 10808931), (21, 10294220), (28, 7720665), (30, 7205954), (35, 6176532), (42, 5147110), (60, 3602977), (70, 3088266), (84, 2573555), (105, 2058844), (140, 1544133), (210, 1029422), (420, 514711)]