20983620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1063}}^1$

素因数の和:1129

約数の個数: 96

約数和(自身を含む): 68640768

約数和(自身を除く): 47657148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1063, 1316, 1410, 1645, 1974, 2126, 2820, 3189, 3290, 3948, 4252, 4935, 5315, 6378, 6580, 7441, 9870, 10630, 12756, 14882, 15945, 19740, 21260, 22323, 29764, 31890, 37205, 44646, 49961, 63780, 74410, 89292, 99922, 111615, 148820, 149883, 199844, 223230, 249805, 299766, 349727, 446460, 499610, 599532, 699454, 749415, 999220, 1049181, 1398908, 1498830, 1748635, 2098362, 2997660, 3497270, 4196724, 5245905, 6994540, 10491810, 20983620]

約数ペア:

[(1, 20983620), (2, 10491810), (3, 6994540), (4, 5245905), (5, 4196724), (6, 3497270), (7, 2997660), (10, 2098362), (12, 1748635), (14, 1498830), (15, 1398908), (20, 1049181), (21, 999220), (28, 749415), (30, 699454), (35, 599532), (42, 499610), (47, 446460), (60, 349727), (70, 299766), (84, 249805), (94, 223230), (105, 199844), (140, 149883), (141, 148820), (188, 111615), (210, 99922), (235, 89292), (282, 74410), (329, 63780), (420, 49961), (470, 44646), (564, 37205), (658, 31890), (705, 29764), (940, 22323), (987, 21260), (1063, 19740), (1316, 15945), (1410, 14882), (1645, 12756), (1974, 10630), (2126, 9870), (2820, 7441), (3189, 6580), (3290, 6378), (3948, 5315), (4252, 4935)]