218919260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7703}}^1$

素因数の和:7755

約数の個数: 72

約数和(自身を含む): 553301280

約数和(自身を除く): 334382020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7105, 7703, 14210, 15406, 28420, 30812, 38515, 53921, 77030, 107842, 154060, 215684, 223387, 269605, 377447, 446774, 539210, 754894, 893548, 1078420, 1116935, 1509788, 1563709, 1887235, 2233870, 3127418, 3774470, 4467740, 6254836, 7548940, 7818545, 10945963, 15637090, 21891926, 31274180, 43783852, 54729815, 109459630, 218919260]

約数ペア:

[(1, 218919260), (2, 109459630), (4, 54729815), (5, 43783852), (7, 31274180), (10, 21891926), (14, 15637090), (20, 10945963), (28, 7818545), (29, 7548940), (35, 6254836), (49, 4467740), (58, 3774470), (70, 3127418), (98, 2233870), (116, 1887235), (140, 1563709), (145, 1509788), (196, 1116935), (203, 1078420), (245, 893548), (290, 754894), (406, 539210), (490, 446774), (580, 377447), (812, 269605), (980, 223387), (1015, 215684), (1421, 154060), (2030, 107842), (2842, 77030), (4060, 53921), (5684, 38515), (7105, 30812), (7703, 28420), (14210, 15406)]