28007490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{677}}^1$

素因数の和:891

約数の個数: 64

約数和(自身を含む): 77324544

約数和(自身を除く): 49317054

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 197, 210, 394, 591, 677, 985, 1182, 1354, 1379, 1970, 2031, 2758, 2955, 3385, 4062, 4137, 4739, 5910, 6770, 6895, 8274, 9478, 10155, 13790, 14217, 20310, 20685, 23695, 28434, 41370, 47390, 71085, 133369, 142170, 266738, 400107, 666845, 800214, 933583, 1333690, 1867166, 2000535, 2800749, 4001070, 4667915, 5601498, 9335830, 14003745, 28007490]

約数ペア:

[(1, 28007490), (2, 14003745), (3, 9335830), (5, 5601498), (6, 4667915), (7, 4001070), (10, 2800749), (14, 2000535), (15, 1867166), (21, 1333690), (30, 933583), (35, 800214), (42, 666845), (70, 400107), (105, 266738), (197, 142170), (210, 133369), (394, 71085), (591, 47390), (677, 41370), (985, 28434), (1182, 23695), (1354, 20685), (1379, 20310), (1970, 14217), (2031, 13790), (2758, 10155), (2955, 9478), (3385, 8274), (4062, 6895), (4137, 6770), (4739, 5910)]