20931680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1699}}^1$

素因数の和:1732

約数の個数: 96

約数和(自身を含む): 61689600

約数和(自身を除く): 40757920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1699, 1760, 2464, 3080, 3398, 6160, 6796, 8495, 11893, 12320, 13592, 16990, 18689, 23786, 27184, 33980, 37378, 47572, 54368, 59465, 67960, 74756, 93445, 95144, 118930, 130823, 135920, 149512, 186890, 190288, 237860, 261646, 271840, 299024, 373780, 380576, 475720, 523292, 598048, 654115, 747560, 951440, 1046584, 1308230, 1495120, 1902880, 2093168, 2616460, 2990240, 4186336, 5232920, 10465840, 20931680]

約数ペア:

[(1, 20931680), (2, 10465840), (4, 5232920), (5, 4186336), (7, 2990240), (8, 2616460), (10, 2093168), (11, 1902880), (14, 1495120), (16, 1308230), (20, 1046584), (22, 951440), (28, 747560), (32, 654115), (35, 598048), (40, 523292), (44, 475720), (55, 380576), (56, 373780), (70, 299024), (77, 271840), (80, 261646), (88, 237860), (110, 190288), (112, 186890), (140, 149512), (154, 135920), (160, 130823), (176, 118930), (220, 95144), (224, 93445), (280, 74756), (308, 67960), (352, 59465), (385, 54368), (440, 47572), (560, 37378), (616, 33980), (770, 27184), (880, 23786), (1120, 18689), (1232, 16990), (1540, 13592), (1699, 12320), (1760, 11893), (2464, 8495), (3080, 6796), (3398, 6160)]