21538800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 180

約数和(自身を含む): 77556544

約数和(自身を除く): 56017744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 31, 36, 40, 45, 48, 50, 60, 62, 72, 75, 80, 90, 93, 100, 120, 124, 144, 150, 155, 180, 186, 193, 200, 225, 240, 248, 279, 300, 310, 360, 372, 386, 400, 450, 465, 496, 558, 579, 600, 620, 720, 744, 772, 775, 900, 930, 965, 1116, 1158, 1200, 1240, 1395, 1488, 1544, 1550, 1737, 1800, 1860, 1930, 2232, 2316, 2325, 2480, 2790, 2895, 3088, 3100, 3474, 3600, 3720, 3860, 4464, 4632, 4650, 4825, 5580, 5790, 5983, 6200, 6948, 6975, 7440, 7720, 8685, 9264, 9300, 9650, 11160, 11580, 11966, 12400, 13896, 13950, 14475, 15440, 17370, 17949, 18600, 19300, 22320, 23160, 23932, 27792, 27900, 28950, 29915, 34740, 35898, 37200, 38600, 43425, 46320, 47864, 53847, 55800, 57900, 59830, 69480, 71796, 77200, 86850, 89745, 95728, 107694, 111600, 115800, 119660, 138960, 143592, 149575, 173700, 179490, 215388, 231600, 239320, 269235, 287184, 299150, 347400, 358980, 430776, 448725, 478640, 538470, 598300, 694800, 717960, 861552, 897450, 1076940, 1196600, 1346175, 1435920, 1794900, 2153880, 2393200, 2692350, 3589800, 4307760, 5384700, 7179600, 10769400, 21538800]

約数ペア:

[(1, 21538800), (2, 10769400), (3, 7179600), (4, 5384700), (5, 4307760), (6, 3589800), (8, 2692350), (9, 2393200), (10, 2153880), (12, 1794900), (15, 1435920), (16, 1346175), (18, 1196600), (20, 1076940), (24, 897450), (25, 861552), (30, 717960), (31, 694800), (36, 598300), (40, 538470), (45, 478640), (48, 448725), (50, 430776), (60, 358980), (62, 347400), (72, 299150), (75, 287184), (80, 269235), (90, 239320), (93, 231600), (100, 215388), (120, 179490), (124, 173700), (144, 149575), (150, 143592), (155, 138960), (180, 119660), (186, 115800), (193, 111600), (200, 107694), (225, 95728), (240, 89745), (248, 86850), (279, 77200), (300, 71796), (310, 69480), (360, 59830), (372, 57900), (386, 55800), (400, 53847), (450, 47864), (465, 46320), (496, 43425), (558, 38600), (579, 37200), (600, 35898), (620, 34740), (720, 29915), (744, 28950), (772, 27900), (775, 27792), (900, 23932), (930, 23160), (965, 22320), (1116, 19300), (1158, 18600), (1200, 17949), (1240, 17370), (1395, 15440), (1488, 14475), (1544, 13950), (1550, 13896), (1737, 12400), (1800, 11966), (1860, 11580), (1930, 11160), (2232, 9650), (2316, 9300), (2325, 9264), (2480, 8685), (2790, 7720), (2895, 7440), (3088, 6975), (3100, 6948), (3474, 6200), (3600, 5983), (3720, 5790), (3860, 5580), (4464, 4825), (4632, 4650)]