215853540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{513937}}^1$

素因数の和:513956

約数の個数: 48

約数和(自身を含む): 690732672

約数和(自身を除く): 474879132

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, 513937, 1027874, 1541811, 2055748, 2569685, 3083622, 3597559, 5139370, 6167244, 7195118, 7709055, 10278740, 10792677, 14390236, 15418110, 17987795, 21585354, 30836220, 35975590, 43170708, 53963385, 71951180, 107926770, 215853540]

約数ペア:

[(1, 215853540), (2, 107926770), (3, 71951180), (4, 53963385), (5, 43170708), (6, 35975590), (7, 30836220), (10, 21585354), (12, 17987795), (14, 15418110), (15, 14390236), (20, 10792677), (21, 10278740), (28, 7709055), (30, 7195118), (35, 6167244), (42, 5139370), (60, 3597559), (70, 3083622), (84, 2569685), (105, 2055748), (140, 1541811), (210, 1027874), (420, 513937)]