408570890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1747}}^1$

素因数の和:2031

約数の個数: 64

約数和(自身を含む): 909183744

約数和(自身を除く): 500612854

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 257, 455, 514, 910, 1285, 1747, 1799, 2570, 3341, 3494, 3598, 6682, 8735, 8995, 12229, 16705, 17470, 17990, 22711, 23387, 24458, 33410, 45422, 46774, 61145, 113555, 116935, 122290, 158977, 227110, 233870, 317954, 448979, 794885, 897958, 1589770, 2244895, 3142853, 4489790, 5836727, 6285706, 11673454, 15714265, 29183635, 31428530, 40857089, 58367270, 81714178, 204285445, 408570890]

約数ペア:

[(1, 408570890), (2, 204285445), (5, 81714178), (7, 58367270), (10, 40857089), (13, 31428530), (14, 29183635), (26, 15714265), (35, 11673454), (65, 6285706), (70, 5836727), (91, 4489790), (130, 3142853), (182, 2244895), (257, 1589770), (455, 897958), (514, 794885), (910, 448979), (1285, 317954), (1747, 233870), (1799, 227110), (2570, 158977), (3341, 122290), (3494, 116935), (3598, 113555), (6682, 61145), (8735, 46774), (8995, 45422), (12229, 33410), (16705, 24458), (17470, 23387), (17990, 22711)]