20652160

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 52457580

約数和(自身を除く): 31805420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 61, 64, 80, 92, 115, 122, 128, 160, 184, 230, 244, 305, 320, 368, 460, 488, 529, 610, 640, 736, 920, 976, 1058, 1220, 1403, 1472, 1840, 1952, 2116, 2440, 2645, 2806, 2944, 3680, 3904, 4232, 4880, 5290, 5612, 7015, 7360, 7808, 8464, 9760, 10580, 11224, 14030, 14720, 16928, 19520, 21160, 22448, 28060, 32269, 33856, 39040, 42320, 44896, 56120, 64538, 67712, 84640, 89792, 112240, 129076, 161345, 169280, 179584, 224480, 258152, 322690, 338560, 448960, 516304, 645380, 897920, 1032608, 1290760, 2065216, 2581520, 4130432, 5163040, 10326080, 20652160]

約数ペア:

[(1, 20652160), (2, 10326080), (4, 5163040), (5, 4130432), (8, 2581520), (10, 2065216), (16, 1290760), (20, 1032608), (23, 897920), (32, 645380), (40, 516304), (46, 448960), (61, 338560), (64, 322690), (80, 258152), (92, 224480), (115, 179584), (122, 169280), (128, 161345), (160, 129076), (184, 112240), (230, 89792), (244, 84640), (305, 67712), (320, 64538), (368, 56120), (460, 44896), (488, 42320), (529, 39040), (610, 33856), (640, 32269), (736, 28060), (920, 22448), (976, 21160), (1058, 19520), (1220, 16928), (1403, 14720), (1472, 14030), (1840, 11224), (1952, 10580), (2116, 9760), (2440, 8464), (2645, 7808), (2806, 7360), (2944, 7015), (3680, 5612), (3904, 5290), (4232, 4880)]