21442560

素因数分解:

$2^{12}\times 3^1\times 5^1\times {\mathrm{349}}^1$

素因数の和:381

約数の個数: 104

約数和(自身を含む): 68804400

約数和(自身を除く): 47361840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 349, 384, 480, 512, 640, 698, 768, 960, 1024, 1047, 1280, 1396, 1536, 1745, 1920, 2048, 2094, 2560, 2792, 3072, 3490, 3840, 4096, 4188, 5120, 5235, 5584, 6144, 6980, 7680, 8376, 10240, 10470, 11168, 12288, 13960, 15360, 16752, 20480, 20940, 22336, 27920, 30720, 33504, 41880, 44672, 55840, 61440, 67008, 83760, 89344, 111680, 134016, 167520, 178688, 223360, 268032, 335040, 357376, 446720, 536064, 670080, 714752, 893440, 1072128, 1340160, 1429504, 1786880, 2144256, 2680320, 3573760, 4288512, 5360640, 7147520, 10721280, 21442560]

約数ペア:

[(1, 21442560), (2, 10721280), (3, 7147520), (4, 5360640), (5, 4288512), (6, 3573760), (8, 2680320), (10, 2144256), (12, 1786880), (15, 1429504), (16, 1340160), (20, 1072128), (24, 893440), (30, 714752), (32, 670080), (40, 536064), (48, 446720), (60, 357376), (64, 335040), (80, 268032), (96, 223360), (120, 178688), (128, 167520), (160, 134016), (192, 111680), (240, 89344), (256, 83760), (320, 67008), (349, 61440), (384, 55840), (480, 44672), (512, 41880), (640, 33504), (698, 30720), (768, 27920), (960, 22336), (1024, 20940), (1047, 20480), (1280, 16752), (1396, 15360), (1536, 13960), (1745, 12288), (1920, 11168), (2048, 10470), (2094, 10240), (2560, 8376), (2792, 7680), (3072, 6980), (3490, 6144), (3840, 5584), (4096, 5235), (4188, 5120)]