209416620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{498611}}^1$

素因数の和:498630

約数の個数: 48

約数和(自身を含む): 670134528

約数和(自身を除く): 460717908

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, 498611, 997222, 1495833, 1994444, 2493055, 2991666, 3490277, 4986110, 5983332, 6980554, 7479165, 9972220, 10470831, 13961108, 14958330, 17451385, 20941662, 29916660, 34902770, 41883324, 52354155, 69805540, 104708310, 209416620]

約数ペア:

[(1, 209416620), (2, 104708310), (3, 69805540), (4, 52354155), (5, 41883324), (6, 34902770), (7, 29916660), (10, 20941662), (12, 17451385), (14, 14958330), (15, 13961108), (20, 10470831), (21, 9972220), (28, 7479165), (30, 6980554), (35, 5983332), (42, 4986110), (60, 3490277), (70, 2991666), (84, 2493055), (105, 1994444), (140, 1495833), (210, 997222), (420, 498611)]