20543824

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 48219136

約数和(自身を除く): 27675312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 61, 62, 97, 112, 122, 124, 194, 217, 244, 248, 388, 427, 434, 488, 496, 679, 776, 854, 868, 976, 1358, 1552, 1708, 1736, 1891, 2716, 3007, 3416, 3472, 3782, 5432, 5917, 6014, 6832, 7564, 10864, 11834, 12028, 13237, 15128, 21049, 23668, 24056, 26474, 30256, 41419, 42098, 47336, 48112, 52948, 82838, 84196, 94672, 105896, 165676, 168392, 183427, 211792, 331352, 336784, 366854, 662704, 733708, 1283989, 1467416, 2567978, 2934832, 5135956, 10271912, 20543824]

約数ペア:

[(1, 20543824), (2, 10271912), (4, 5135956), (7, 2934832), (8, 2567978), (14, 1467416), (16, 1283989), (28, 733708), (31, 662704), (56, 366854), (61, 336784), (62, 331352), (97, 211792), (112, 183427), (122, 168392), (124, 165676), (194, 105896), (217, 94672), (244, 84196), (248, 82838), (388, 52948), (427, 48112), (434, 47336), (488, 42098), (496, 41419), (679, 30256), (776, 26474), (854, 24056), (868, 23668), (976, 21049), (1358, 15128), (1552, 13237), (1708, 12028), (1736, 11834), (1891, 10864), (2716, 7564), (3007, 6832), (3416, 6014), (3472, 5917), (3782, 5432)]