28168980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1427}}^1$

素因数の和:1493

約数の個数: 96

約数和(自身を含む): 92123136

約数和(自身を除く): 63954156

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, 1316, 1410, 1427, 1645, 1974, 2820, 2854, 3290, 3948, 4281, 4935, 5708, 6580, 7135, 8562, 9870, 9989, 14270, 17124, 19740, 19978, 21405, 28540, 29967, 39956, 42810, 49945, 59934, 67069, 85620, 99890, 119868, 134138, 149835, 199780, 201207, 268276, 299670, 335345, 402414, 469483, 599340, 670690, 804828, 938966, 1006035, 1341380, 1408449, 1877932, 2012070, 2347415, 2816898, 4024140, 4694830, 5633796, 7042245, 9389660, 14084490, 28168980]

約数ペア:

[(1, 28168980), (2, 14084490), (3, 9389660), (4, 7042245), (5, 5633796), (6, 4694830), (7, 4024140), (10, 2816898), (12, 2347415), (14, 2012070), (15, 1877932), (20, 1408449), (21, 1341380), (28, 1006035), (30, 938966), (35, 804828), (42, 670690), (47, 599340), (60, 469483), (70, 402414), (84, 335345), (94, 299670), (105, 268276), (140, 201207), (141, 199780), (188, 149835), (210, 134138), (235, 119868), (282, 99890), (329, 85620), (420, 67069), (470, 59934), (564, 49945), (658, 42810), (705, 39956), (940, 29967), (987, 28540), (1316, 21405), (1410, 19978), (1427, 19740), (1645, 17124), (1974, 14270), (2820, 9989), (2854, 9870), (3290, 8562), (3948, 7135), (4281, 6580), (4935, 5708)]