215477220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{513041}}^1$

素因数の和:513060

約数の個数: 48

約数和(自身を含む): 689528448

約数和(自身を除く): 474051228

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, 513041, 1026082, 1539123, 2052164, 2565205, 3078246, 3591287, 5130410, 6156492, 7182574, 7695615, 10260820, 10773861, 14365148, 15391230, 17956435, 21547722, 30782460, 35912870, 43095444, 53869305, 71825740, 107738610, 215477220]

約数ペア:

[(1, 215477220), (2, 107738610), (3, 71825740), (4, 53869305), (5, 43095444), (6, 35912870), (7, 30782460), (10, 21547722), (12, 17956435), (14, 15391230), (15, 14365148), (20, 10773861), (21, 10260820), (28, 7695615), (30, 7182574), (35, 6156492), (42, 5130410), (60, 3591287), (70, 3078246), (84, 2565205), (105, 2052164), (140, 1539123), (210, 1026082), (420, 513041)]