207801855

素因数分解:

$3^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1319}}^1$

素因数の和:1725

約数の個数: 40

約数和(自身を含む): 373744800

約数和(自身を除く): 165942945

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 389, 405, 1167, 1319, 1945, 3501, 3957, 5835, 6595, 10503, 11871, 17505, 19785, 31509, 35613, 52515, 59355, 106839, 157545, 178065, 513091, 534195, 1539273, 2565455, 4617819, 7696365, 13853457, 23089095, 41560371, 69267285, 207801855]

約数ペア:

[(1, 207801855), (3, 69267285), (5, 41560371), (9, 23089095), (15, 13853457), (27, 7696365), (45, 4617819), (81, 2565455), (135, 1539273), (389, 534195), (405, 513091), (1167, 178065), (1319, 157545), (1945, 106839), (3501, 59355), (3957, 52515), (5835, 35613), (6595, 31509), (10503, 19785), (11871, 17505)]