12878180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{773}}^1$

素因数の和:813

約数の個数: 72

約数和(自身を含む): 33353208

約数和(自身を除く): 20475028

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 773, 833, 980, 1190, 1546, 1666, 2380, 3092, 3332, 3865, 4165, 5411, 7730, 8330, 10822, 13141, 15460, 16660, 21644, 26282, 27055, 37877, 52564, 54110, 65705, 75754, 91987, 108220, 131410, 151508, 183974, 189385, 262820, 367948, 378770, 459935, 643909, 757540, 919870, 1287818, 1839740, 2575636, 3219545, 6439090, 12878180]

約数ペア:

[(1, 12878180), (2, 6439090), (4, 3219545), (5, 2575636), (7, 1839740), (10, 1287818), (14, 919870), (17, 757540), (20, 643909), (28, 459935), (34, 378770), (35, 367948), (49, 262820), (68, 189385), (70, 183974), (85, 151508), (98, 131410), (119, 108220), (140, 91987), (170, 75754), (196, 65705), (238, 54110), (245, 52564), (340, 37877), (476, 27055), (490, 26282), (595, 21644), (773, 16660), (833, 15460), (980, 13141), (1190, 10822), (1546, 8330), (1666, 7730), (2380, 5411), (3092, 4165), (3332, 3865)]