20772480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:402

約数の個数: 128

約数和(自身を含む): 68544000

約数和(自身を除く): 47771520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 349, 372, 384, 465, 480, 496, 620, 640, 698, 744, 930, 960, 992, 1047, 1240, 1396, 1488, 1745, 1860, 1920, 1984, 2094, 2480, 2792, 2976, 3490, 3720, 3968, 4188, 4960, 5235, 5584, 5952, 6980, 7440, 8376, 9920, 10470, 10819, 11168, 11904, 13960, 14880, 16752, 19840, 20940, 21638, 22336, 27920, 29760, 32457, 33504, 41880, 43276, 44672, 54095, 55840, 59520, 64914, 67008, 83760, 86552, 108190, 111680, 129828, 134016, 162285, 167520, 173104, 216380, 223360, 259656, 324570, 335040, 346208, 432760, 519312, 649140, 670080, 692416, 865520, 1038624, 1298280, 1384832, 1731040, 2077248, 2596560, 3462080, 4154496, 5193120, 6924160, 10386240, 20772480]

約数ペア:

[(1, 20772480), (2, 10386240), (3, 6924160), (4, 5193120), (5, 4154496), (6, 3462080), (8, 2596560), (10, 2077248), (12, 1731040), (15, 1384832), (16, 1298280), (20, 1038624), (24, 865520), (30, 692416), (31, 670080), (32, 649140), (40, 519312), (48, 432760), (60, 346208), (62, 335040), (64, 324570), (80, 259656), (93, 223360), (96, 216380), (120, 173104), (124, 167520), (128, 162285), (155, 134016), (160, 129828), (186, 111680), (192, 108190), (240, 86552), (248, 83760), (310, 67008), (320, 64914), (349, 59520), (372, 55840), (384, 54095), (465, 44672), (480, 43276), (496, 41880), (620, 33504), (640, 32457), (698, 29760), (744, 27920), (930, 22336), (960, 21638), (992, 20940), (1047, 19840), (1240, 16752), (1396, 14880), (1488, 13960), (1745, 11904), (1860, 11168), (1920, 10819), (1984, 10470), (2094, 9920), (2480, 8376), (2792, 7440), (2976, 6980), (3490, 5952), (3720, 5584), (3968, 5235), (4188, 4960)]