265517680

素因数分解:

$2^4\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{2003}}^1$

素因数の和:3673

約数の個数: 40

約数和(自身を含む): 618009552

約数和(自身を除く): 352491872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1657, 2003, 3314, 4006, 6628, 8012, 8285, 10015, 13256, 16024, 16570, 20030, 26512, 32048, 33140, 40060, 66280, 80120, 132560, 160240, 3318971, 6637942, 13275884, 16594855, 26551768, 33189710, 53103536, 66379420, 132758840, 265517680]

約数ペア:

[(1, 265517680), (2, 132758840), (4, 66379420), (5, 53103536), (8, 33189710), (10, 26551768), (16, 16594855), (20, 13275884), (40, 6637942), (80, 3318971), (1657, 160240), (2003, 132560), (3314, 80120), (4006, 66280), (6628, 40060), (8012, 33140), (8285, 32048), (10015, 26512), (13256, 20030), (16024, 16570)]