1990156

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 4366656

約数和(自身を除く): 2376500

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 113, 119, 148, 226, 238, 259, 452, 476, 518, 629, 791, 1036, 1258, 1582, 1921, 2516, 3164, 3842, 4181, 4403, 7684, 8362, 8806, 13447, 16724, 17612, 26894, 29267, 53788, 58534, 71077, 117068, 142154, 284308, 497539, 995078, 1990156]

約数ペア:

[(1, 1990156), (2, 995078), (4, 497539), (7, 284308), (14, 142154), (17, 117068), (28, 71077), (34, 58534), (37, 53788), (68, 29267), (74, 26894), (113, 17612), (119, 16724), (148, 13447), (226, 8806), (238, 8362), (259, 7684), (452, 4403), (476, 4181), (518, 3842), (629, 3164), (791, 2516), (1036, 1921), (1258, 1582)]