19564192

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 20352608

約数列:

[1, 2, 4, 8, 16, 32, 71, 79, 109, 142, 158, 218, 284, 316, 436, 568, 632, 872, 1136, 1264, 1744, 2272, 2528, 3488, 5609, 7739, 8611, 11218, 15478, 17222, 22436, 30956, 34444, 44872, 61912, 68888, 89744, 123824, 137776, 179488, 247648, 275552, 611381, 1222762, 2445524, 4891048, 9782096, 19564192]

約数ペア:

[(1, 19564192), (2, 9782096), (4, 4891048), (8, 2445524), (16, 1222762), (32, 611381), (71, 275552), (79, 247648), (109, 179488), (142, 137776), (158, 123824), (218, 89744), (284, 68888), (316, 61912), (436, 44872), (568, 34444), (632, 30956), (872, 22436), (1136, 17222), (1264, 15478), (1744, 11218), (2272, 8611), (2528, 7739), (3488, 5609)]