20766480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:333

約数の個数: 160

約数和(自身を含む): 75423744

約数和(自身を除く): 54657264

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 263, 280, 282, 329, 336, 376, 420, 470, 526, 560, 564, 658, 705, 752, 789, 840, 940, 987, 1052, 1128, 1315, 1316, 1410, 1578, 1645, 1680, 1841, 1880, 1974, 2104, 2256, 2630, 2632, 2820, 3156, 3290, 3682, 3760, 3945, 3948, 4208, 4935, 5260, 5264, 5523, 5640, 6312, 6580, 7364, 7890, 7896, 9205, 9870, 10520, 11046, 11280, 12361, 12624, 13160, 14728, 15780, 15792, 18410, 19740, 21040, 22092, 24722, 26320, 27615, 29456, 31560, 36820, 37083, 39480, 44184, 49444, 55230, 61805, 63120, 73640, 74166, 78960, 86527, 88368, 98888, 110460, 123610, 147280, 148332, 173054, 185415, 197776, 220920, 247220, 259581, 296664, 346108, 370830, 432635, 441840, 494440, 519162, 593328, 692216, 741660, 865270, 988880, 1038324, 1297905, 1384432, 1483320, 1730540, 2076648, 2595810, 2966640, 3461080, 4153296, 5191620, 6922160, 10383240, 20766480]

約数ペア:

[(1, 20766480), (2, 10383240), (3, 6922160), (4, 5191620), (5, 4153296), (6, 3461080), (7, 2966640), (8, 2595810), (10, 2076648), (12, 1730540), (14, 1483320), (15, 1384432), (16, 1297905), (20, 1038324), (21, 988880), (24, 865270), (28, 741660), (30, 692216), (35, 593328), (40, 519162), (42, 494440), (47, 441840), (48, 432635), (56, 370830), (60, 346108), (70, 296664), (80, 259581), (84, 247220), (94, 220920), (105, 197776), (112, 185415), (120, 173054), (140, 148332), (141, 147280), (168, 123610), (188, 110460), (210, 98888), (235, 88368), (240, 86527), (263, 78960), (280, 74166), (282, 73640), (329, 63120), (336, 61805), (376, 55230), (420, 49444), (470, 44184), (526, 39480), (560, 37083), (564, 36820), (658, 31560), (705, 29456), (752, 27615), (789, 26320), (840, 24722), (940, 22092), (987, 21040), (1052, 19740), (1128, 18410), (1315, 15792), (1316, 15780), (1410, 14728), (1578, 13160), (1645, 12624), (1680, 12361), (1841, 11280), (1880, 11046), (1974, 10520), (2104, 9870), (2256, 9205), (2630, 7896), (2632, 7890), (2820, 7364), (3156, 6580), (3290, 6312), (3682, 5640), (3760, 5523), (3945, 5264), (3948, 5260), (4208, 4935)]