668889495

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{56951}}^1$

素因数の和:56997

約数の個数: 40

約数和(自身を含む): 1240414560

約数和(自身を除く): 571525065

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 2349, 3915, 11745, 56951, 170853, 284755, 512559, 854265, 1537677, 1651579, 2562795, 4613031, 4954737, 7688385, 8257895, 14864211, 23065155, 24773685, 44592633, 74321055, 133777899, 222963165, 668889495]

約数ペア:

[(1, 668889495), (3, 222963165), (5, 133777899), (9, 74321055), (15, 44592633), (27, 24773685), (29, 23065155), (45, 14864211), (81, 8257895), (87, 7688385), (135, 4954737), (145, 4613031), (261, 2562795), (405, 1651579), (435, 1537677), (783, 854265), (1305, 512559), (2349, 284755), (3915, 170853), (11745, 56951)]