81280560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{338669}}^1$

素因数の和:338685

約数の個数: 40

約数和(自身を含む): 251970480

約数和(自身を除く): 170689920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 338669, 677338, 1016007, 1354676, 1693345, 2032014, 2709352, 3386690, 4064028, 5080035, 5418704, 6773380, 8128056, 10160070, 13546760, 16256112, 20320140, 27093520, 40640280, 81280560]

約数ペア:

[(1, 81280560), (2, 40640280), (3, 27093520), (4, 20320140), (5, 16256112), (6, 13546760), (8, 10160070), (10, 8128056), (12, 6773380), (15, 5418704), (16, 5080035), (20, 4064028), (24, 3386690), (30, 2709352), (40, 2032014), (48, 1693345), (60, 1354676), (80, 1016007), (120, 677338), (240, 338669)]