28405566

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:735

約数の個数: 80

約数和(自身を含む): 74818656

約数和(自身を除く): 46413090

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 81, 111, 126, 162, 189, 222, 259, 333, 378, 518, 567, 666, 677, 777, 999, 1134, 1354, 1554, 1998, 2031, 2331, 2997, 4062, 4662, 4739, 5994, 6093, 6993, 9478, 12186, 13986, 14217, 18279, 20979, 25049, 28434, 36558, 41958, 42651, 50098, 54837, 75147, 85302, 109674, 127953, 150294, 175343, 225441, 255906, 350686, 383859, 450882, 526029, 676323, 767718, 1052058, 1352646, 1578087, 2028969, 3156174, 4057938, 4734261, 9468522, 14202783, 28405566]

約数ペア:

[(1, 28405566), (2, 14202783), (3, 9468522), (6, 4734261), (7, 4057938), (9, 3156174), (14, 2028969), (18, 1578087), (21, 1352646), (27, 1052058), (37, 767718), (42, 676323), (54, 526029), (63, 450882), (74, 383859), (81, 350686), (111, 255906), (126, 225441), (162, 175343), (189, 150294), (222, 127953), (259, 109674), (333, 85302), (378, 75147), (518, 54837), (567, 50098), (666, 42651), (677, 41958), (777, 36558), (999, 28434), (1134, 25049), (1354, 20979), (1554, 18279), (1998, 14217), (2031, 13986), (2331, 12186), (2997, 9478), (4062, 6993), (4662, 6093), (4739, 5994)]