20154400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 58121280

約数和(自身を除く): 37966880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 59, 61, 70, 80, 100, 112, 118, 122, 140, 160, 175, 200, 224, 236, 244, 280, 295, 305, 350, 400, 413, 427, 472, 488, 560, 590, 610, 700, 800, 826, 854, 944, 976, 1120, 1180, 1220, 1400, 1475, 1525, 1652, 1708, 1888, 1952, 2065, 2135, 2360, 2440, 2800, 2950, 3050, 3304, 3416, 3599, 4130, 4270, 4720, 4880, 5600, 5900, 6100, 6608, 6832, 7198, 8260, 8540, 9440, 9760, 10325, 10675, 11800, 12200, 13216, 13664, 14396, 16520, 17080, 17995, 20650, 21350, 23600, 24400, 25193, 28792, 33040, 34160, 35990, 41300, 42700, 47200, 48800, 50386, 57584, 66080, 68320, 71980, 82600, 85400, 89975, 100772, 115168, 125965, 143960, 165200, 170800, 179950, 201544, 251930, 287920, 330400, 341600, 359900, 403088, 503860, 575840, 629825, 719800, 806176, 1007720, 1259650, 1439600, 2015440, 2519300, 2879200, 4030880, 5038600, 10077200, 20154400]

約数ペア:

[(1, 20154400), (2, 10077200), (4, 5038600), (5, 4030880), (7, 2879200), (8, 2519300), (10, 2015440), (14, 1439600), (16, 1259650), (20, 1007720), (25, 806176), (28, 719800), (32, 629825), (35, 575840), (40, 503860), (50, 403088), (56, 359900), (59, 341600), (61, 330400), (70, 287920), (80, 251930), (100, 201544), (112, 179950), (118, 170800), (122, 165200), (140, 143960), (160, 125965), (175, 115168), (200, 100772), (224, 89975), (236, 85400), (244, 82600), (280, 71980), (295, 68320), (305, 66080), (350, 57584), (400, 50386), (413, 48800), (427, 47200), (472, 42700), (488, 41300), (560, 35990), (590, 34160), (610, 33040), (700, 28792), (800, 25193), (826, 24400), (854, 23600), (944, 21350), (976, 20650), (1120, 17995), (1180, 17080), (1220, 16520), (1400, 14396), (1475, 13664), (1525, 13216), (1652, 12200), (1708, 11800), (1888, 10675), (1952, 10325), (2065, 9760), (2135, 9440), (2360, 8540), (2440, 8260), (2800, 7198), (2950, 6832), (3050, 6608), (3304, 6100), (3416, 5900), (3599, 5600), (4130, 4880), (4270, 4720)]