1990084680

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59441}}^1$

素因数の和:59492

約数の個数: 128

約数和(自身を含む): 6847718400

約数和(自身を除く): 4857633720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 620, 744, 837, 930, 1080, 1116, 1240, 1395, 1674, 1860, 2232, 2790, 3348, 3720, 4185, 5580, 6696, 8370, 11160, 16740, 33480, 59441, 118882, 178323, 237764, 297205, 356646, 475528, 534969, 594410, 713292, 891615, 1069938, 1188820, 1426584, 1604907, 1783230, 1842671, 2139876, 2377640, 2674845, 3209814, 3566460, 3685342, 4279752, 5349690, 5528013, 6419628, 7132920, 7370684, 8024535, 9213355, 10699380, 11056026, 12839256, 14741368, 16049070, 16584039, 18426710, 21398760, 22112052, 27640065, 32098140, 33168078, 36853420, 44224104, 49752117, 55280130, 64196280, 66336156, 73706840, 82920195, 99504234, 110560260, 132672312, 165840390, 199008468, 221120520, 248760585, 331680780, 398016936, 497521170, 663361560, 995042340, 1990084680]

約数ペア:

[(1, 1990084680), (2, 995042340), (3, 663361560), (4, 497521170), (5, 398016936), (6, 331680780), (8, 248760585), (9, 221120520), (10, 199008468), (12, 165840390), (15, 132672312), (18, 110560260), (20, 99504234), (24, 82920195), (27, 73706840), (30, 66336156), (31, 64196280), (36, 55280130), (40, 49752117), (45, 44224104), (54, 36853420), (60, 33168078), (62, 32098140), (72, 27640065), (90, 22112052), (93, 21398760), (108, 18426710), (120, 16584039), (124, 16049070), (135, 14741368), (155, 12839256), (180, 11056026), (186, 10699380), (216, 9213355), (248, 8024535), (270, 7370684), (279, 7132920), (310, 6419628), (360, 5528013), (372, 5349690), (465, 4279752), (540, 3685342), (558, 3566460), (620, 3209814), (744, 2674845), (837, 2377640), (930, 2139876), (1080, 1842671), (1116, 1783230), (1240, 1604907), (1395, 1426584), (1674, 1188820), (1860, 1069938), (2232, 891615), (2790, 713292), (3348, 594410), (3720, 534969), (4185, 475528), (5580, 356646), (6696, 297205), (8370, 237764), (11160, 178323), (16740, 118882), (33480, 59441)]