28378140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67567}}^1$

素因数の和:67586

約数の個数: 48

約数和(自身を含む): 90811392

約数和(自身を除く): 62433252

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67567, 135134, 202701, 270268, 337835, 405402, 472969, 675670, 810804, 945938, 1013505, 1351340, 1418907, 1891876, 2027010, 2364845, 2837814, 4054020, 4729690, 5675628, 7094535, 9459380, 14189070, 28378140]

約数ペア:

[(1, 28378140), (2, 14189070), (3, 9459380), (4, 7094535), (5, 5675628), (6, 4729690), (7, 4054020), (10, 2837814), (12, 2364845), (14, 2027010), (15, 1891876), (20, 1418907), (21, 1351340), (28, 1013505), (30, 945938), (35, 810804), (42, 675670), (60, 472969), (70, 405402), (84, 337835), (105, 270268), (140, 202701), (210, 135134), (420, 67567)]