21274560

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 168

約数和(自身を含む): 74889360

約数和(自身を除く): 53614800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 83, 89, 90, 96, 120, 144, 160, 166, 178, 180, 192, 240, 249, 267, 288, 320, 332, 356, 360, 415, 445, 480, 498, 534, 576, 664, 712, 720, 747, 801, 830, 890, 960, 996, 1068, 1245, 1328, 1335, 1424, 1440, 1494, 1602, 1660, 1780, 1992, 2136, 2490, 2656, 2670, 2848, 2880, 2988, 3204, 3320, 3560, 3735, 3984, 4005, 4272, 4980, 5312, 5340, 5696, 5976, 6408, 6640, 7120, 7387, 7470, 7968, 8010, 8544, 9960, 10680, 11952, 12816, 13280, 14240, 14774, 14940, 15936, 16020, 17088, 19920, 21360, 22161, 23904, 25632, 26560, 28480, 29548, 29880, 32040, 36935, 39840, 42720, 44322, 47808, 51264, 59096, 59760, 64080, 66483, 73870, 79680, 85440, 88644, 110805, 118192, 119520, 128160, 132966, 147740, 177288, 221610, 236384, 239040, 256320, 265932, 295480, 332415, 354576, 443220, 472768, 531864, 590960, 664830, 709152, 886440, 1063728, 1181920, 1329660, 1418304, 1772880, 2127456, 2363840, 2659320, 3545760, 4254912, 5318640, 7091520, 10637280, 21274560]

約数ペア:

[(1, 21274560), (2, 10637280), (3, 7091520), (4, 5318640), (5, 4254912), (6, 3545760), (8, 2659320), (9, 2363840), (10, 2127456), (12, 1772880), (15, 1418304), (16, 1329660), (18, 1181920), (20, 1063728), (24, 886440), (30, 709152), (32, 664830), (36, 590960), (40, 531864), (45, 472768), (48, 443220), (60, 354576), (64, 332415), (72, 295480), (80, 265932), (83, 256320), (89, 239040), (90, 236384), (96, 221610), (120, 177288), (144, 147740), (160, 132966), (166, 128160), (178, 119520), (180, 118192), (192, 110805), (240, 88644), (249, 85440), (267, 79680), (288, 73870), (320, 66483), (332, 64080), (356, 59760), (360, 59096), (415, 51264), (445, 47808), (480, 44322), (498, 42720), (534, 39840), (576, 36935), (664, 32040), (712, 29880), (720, 29548), (747, 28480), (801, 26560), (830, 25632), (890, 23904), (960, 22161), (996, 21360), (1068, 19920), (1245, 17088), (1328, 16020), (1335, 15936), (1424, 14940), (1440, 14774), (1494, 14240), (1602, 13280), (1660, 12816), (1780, 11952), (1992, 10680), (2136, 9960), (2490, 8544), (2656, 8010), (2670, 7968), (2848, 7470), (2880, 7387), (2988, 7120), (3204, 6640), (3320, 6408), (3560, 5976), (3735, 5696), (3984, 5340), (4005, 5312), (4272, 4980)]