28201920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1013}}^1$

素因数の和:1062

約数の個数: 112

約数和(自身を含む): 92720160

約数和(自身を除く): 64518240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 145, 160, 174, 192, 232, 240, 290, 320, 348, 435, 464, 480, 580, 696, 870, 928, 960, 1013, 1160, 1392, 1740, 1856, 2026, 2320, 2784, 3039, 3480, 4052, 4640, 5065, 5568, 6078, 6960, 8104, 9280, 10130, 12156, 13920, 15195, 16208, 20260, 24312, 27840, 29377, 30390, 32416, 40520, 48624, 58754, 60780, 64832, 81040, 88131, 97248, 117508, 121560, 146885, 162080, 176262, 194496, 235016, 243120, 293770, 324160, 352524, 440655, 470032, 486240, 587540, 705048, 881310, 940064, 972480, 1175080, 1410096, 1762620, 1880128, 2350160, 2820192, 3525240, 4700320, 5640384, 7050480, 9400640, 14100960, 28201920]

約数ペア:

[(1, 28201920), (2, 14100960), (3, 9400640), (4, 7050480), (5, 5640384), (6, 4700320), (8, 3525240), (10, 2820192), (12, 2350160), (15, 1880128), (16, 1762620), (20, 1410096), (24, 1175080), (29, 972480), (30, 940064), (32, 881310), (40, 705048), (48, 587540), (58, 486240), (60, 470032), (64, 440655), (80, 352524), (87, 324160), (96, 293770), (116, 243120), (120, 235016), (145, 194496), (160, 176262), (174, 162080), (192, 146885), (232, 121560), (240, 117508), (290, 97248), (320, 88131), (348, 81040), (435, 64832), (464, 60780), (480, 58754), (580, 48624), (696, 40520), (870, 32416), (928, 30390), (960, 29377), (1013, 27840), (1160, 24312), (1392, 20260), (1740, 16208), (1856, 15195), (2026, 13920), (2320, 12156), (2784, 10130), (3039, 9280), (3480, 8104), (4052, 6960), (4640, 6078), (5065, 5568)]