20944140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1061}}^1$

素因数の和:1127

約数の個数: 96

約数和(自身を含む): 68511744

約数和(自身を除く): 47567604

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, 1061, 1316, 1410, 1645, 1974, 2122, 2820, 3183, 3290, 3948, 4244, 4935, 5305, 6366, 6580, 7427, 9870, 10610, 12732, 14854, 15915, 19740, 21220, 22281, 29708, 31830, 37135, 44562, 49867, 63660, 74270, 89124, 99734, 111405, 148540, 149601, 199468, 222810, 249335, 299202, 349069, 445620, 498670, 598404, 698138, 748005, 997340, 1047207, 1396276, 1496010, 1745345, 2094414, 2992020, 3490690, 4188828, 5236035, 6981380, 10472070, 20944140]

約数ペア:

[(1, 20944140), (2, 10472070), (3, 6981380), (4, 5236035), (5, 4188828), (6, 3490690), (7, 2992020), (10, 2094414), (12, 1745345), (14, 1496010), (15, 1396276), (20, 1047207), (21, 997340), (28, 748005), (30, 698138), (35, 598404), (42, 498670), (47, 445620), (60, 349069), (70, 299202), (84, 249335), (94, 222810), (105, 199468), (140, 149601), (141, 148540), (188, 111405), (210, 99734), (235, 89124), (282, 74270), (329, 63660), (420, 49867), (470, 44562), (564, 37135), (658, 31830), (705, 29708), (940, 22281), (987, 21220), (1061, 19740), (1316, 15915), (1410, 14854), (1645, 12732), (1974, 10610), (2122, 9870), (2820, 7427), (3183, 6580), (3290, 6366), (3948, 5305), (4244, 4935)]