20722520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5693}}^1$

素因数の和:5724

約数の個数: 64

約数和(自身を含む): 57395520

約数和(自身を除く): 36673000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5693, 11386, 22772, 28465, 39851, 45544, 56930, 74009, 79702, 113860, 148018, 159404, 199255, 227720, 296036, 318808, 370045, 398510, 518063, 592072, 740090, 797020, 1036126, 1480180, 1594040, 2072252, 2590315, 2960360, 4144504, 5180630, 10361260, 20722520]

約数ペア:

[(1, 20722520), (2, 10361260), (4, 5180630), (5, 4144504), (7, 2960360), (8, 2590315), (10, 2072252), (13, 1594040), (14, 1480180), (20, 1036126), (26, 797020), (28, 740090), (35, 592072), (40, 518063), (52, 398510), (56, 370045), (65, 318808), (70, 296036), (91, 227720), (104, 199255), (130, 159404), (140, 148018), (182, 113860), (260, 79702), (280, 74009), (364, 56930), (455, 45544), (520, 39851), (728, 28465), (910, 22772), (1820, 11386), (3640, 5693)]