20005573210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1\times {\mathrm{17383}}^1$

素因数の和:17839

約数の個数: 64

約数和(自身を含む): 42265649664

約数和(自身を除く): 22260076454

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 401, 410, 574, 802, 1435, 2005, 2807, 2870, 4010, 5614, 14035, 16441, 17383, 28070, 32882, 34766, 82205, 86915, 115087, 121681, 164410, 173830, 230174, 243362, 575435, 608405, 712703, 1150870, 1216810, 1425406, 3563515, 4988921, 6970583, 7127030, 9977842, 13941166, 24944605, 34852915, 48794081, 49889210, 69705830, 97588162, 243970405, 285793903, 487940810, 571587806, 1428969515, 2000557321, 2857939030, 4001114642, 10002786605, 20005573210]

約数ペア:

[(1, 20005573210), (2, 10002786605), (5, 4001114642), (7, 2857939030), (10, 2000557321), (14, 1428969515), (35, 571587806), (41, 487940810), (70, 285793903), (82, 243970405), (205, 97588162), (287, 69705830), (401, 49889210), (410, 48794081), (574, 34852915), (802, 24944605), (1435, 13941166), (2005, 9977842), (2807, 7127030), (2870, 6970583), (4010, 4988921), (5614, 3563515), (14035, 1425406), (16441, 1216810), (17383, 1150870), (28070, 712703), (32882, 608405), (34766, 575435), (82205, 243362), (86915, 230174), (115087, 173830), (121681, 164410)]