18350080

素因数分解:

$2^{19}\times 5^1\times 7^1$

素因数の和:50

約数の個数: 80

約数和(自身を含む): 50331600

約数和(自身を除く): 31981520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1024, 1120, 1280, 1792, 2048, 2240, 2560, 3584, 4096, 4480, 5120, 7168, 8192, 8960, 10240, 14336, 16384, 17920, 20480, 28672, 32768, 35840, 40960, 57344, 65536, 71680, 81920, 114688, 131072, 143360, 163840, 229376, 262144, 286720, 327680, 458752, 524288, 573440, 655360, 917504, 1146880, 1310720, 1835008, 2293760, 2621440, 3670016, 4587520, 9175040, 18350080]

約数ペア:

[(1, 18350080), (2, 9175040), (4, 4587520), (5, 3670016), (7, 2621440), (8, 2293760), (10, 1835008), (14, 1310720), (16, 1146880), (20, 917504), (28, 655360), (32, 573440), (35, 524288), (40, 458752), (56, 327680), (64, 286720), (70, 262144), (80, 229376), (112, 163840), (128, 143360), (140, 131072), (160, 114688), (224, 81920), (256, 71680), (280, 65536), (320, 57344), (448, 40960), (512, 35840), (560, 32768), (640, 28672), (896, 20480), (1024, 17920), (1120, 16384), (1280, 14336), (1792, 10240), (2048, 8960), (2240, 8192), (2560, 7168), (3584, 5120), (4096, 4480)]