28301680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1109}}^1$

素因数の和:1162

約数の個数: 80

約数和(自身を含む): 74325600

約数和(自身を除く): 46023920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1109, 1160, 1276, 1595, 2218, 2320, 2552, 3190, 4436, 5104, 5545, 6380, 8872, 11090, 12199, 12760, 17744, 22180, 24398, 25520, 32161, 44360, 48796, 60995, 64322, 88720, 97592, 121990, 128644, 160805, 195184, 243980, 257288, 321610, 353771, 487960, 514576, 643220, 707542, 975920, 1286440, 1415084, 1768855, 2572880, 2830168, 3537710, 5660336, 7075420, 14150840, 28301680]

約数ペア:

[(1, 28301680), (2, 14150840), (4, 7075420), (5, 5660336), (8, 3537710), (10, 2830168), (11, 2572880), (16, 1768855), (20, 1415084), (22, 1286440), (29, 975920), (40, 707542), (44, 643220), (55, 514576), (58, 487960), (80, 353771), (88, 321610), (110, 257288), (116, 243980), (145, 195184), (176, 160805), (220, 128644), (232, 121990), (290, 97592), (319, 88720), (440, 64322), (464, 60995), (580, 48796), (638, 44360), (880, 32161), (1109, 25520), (1160, 24398), (1276, 22180), (1595, 17744), (2218, 12760), (2320, 12199), (2552, 11090), (3190, 8872), (4436, 6380), (5104, 5545)]