20317680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28219}}^1$

素因数の和:28238

約数の個数: 60

約数和(自身を含む): 68235960

約数和(自身を除く): 47918280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28219, 56438, 84657, 112876, 141095, 169314, 225752, 253971, 282190, 338628, 423285, 451504, 507942, 564380, 677256, 846570, 1015884, 1128760, 1269855, 1354512, 1693140, 2031768, 2257520, 2539710, 3386280, 4063536, 5079420, 6772560, 10158840, 20317680]

約数ペア:

[(1, 20317680), (2, 10158840), (3, 6772560), (4, 5079420), (5, 4063536), (6, 3386280), (8, 2539710), (9, 2257520), (10, 2031768), (12, 1693140), (15, 1354512), (16, 1269855), (18, 1128760), (20, 1015884), (24, 846570), (30, 677256), (36, 564380), (40, 507942), (45, 451504), (48, 423285), (60, 338628), (72, 282190), (80, 253971), (90, 225752), (120, 169314), (144, 141095), (180, 112876), (240, 84657), (360, 56438), (720, 28219)]