279286980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{1481}}^1$

素因数の和:1949

約数の個数: 96

約数和(自身を含む): 896313600

約数和(自身を除く): 617026620

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, 449, 898, 1347, 1481, 1796, 2245, 2694, 2962, 3143, 4443, 4490, 5388, 5924, 6286, 6735, 7405, 8886, 8980, 9429, 10367, 12572, 13470, 14810, 15715, 17772, 18858, 20734, 22215, 26940, 29620, 31101, 31430, 37716, 41468, 44430, 47145, 51835, 62202, 62860, 88860, 94290, 103670, 124404, 155505, 188580, 207340, 311010, 622020, 664969, 1329938, 1994907, 2659876, 3324845, 3989814, 4654783, 6649690, 7979628, 9309566, 9974535, 13299380, 13964349, 18619132, 19949070, 23273915, 27928698, 39898140, 46547830, 55857396, 69821745, 93095660, 139643490, 279286980]

約数ペア:

[(1, 279286980), (2, 139643490), (3, 93095660), (4, 69821745), (5, 55857396), (6, 46547830), (7, 39898140), (10, 27928698), (12, 23273915), (14, 19949070), (15, 18619132), (20, 13964349), (21, 13299380), (28, 9974535), (30, 9309566), (35, 7979628), (42, 6649690), (60, 4654783), (70, 3989814), (84, 3324845), (105, 2659876), (140, 1994907), (210, 1329938), (420, 664969), (449, 622020), (898, 311010), (1347, 207340), (1481, 188580), (1796, 155505), (2245, 124404), (2694, 103670), (2962, 94290), (3143, 88860), (4443, 62860), (4490, 62202), (5388, 51835), (5924, 47145), (6286, 44430), (6735, 41468), (7405, 37716), (8886, 31430), (8980, 31101), (9429, 29620), (10367, 26940), (12572, 22215), (13470, 20734), (14810, 18858), (15715, 17772)]