42721280

素因数分解:

$2^{13}\times 5^1\times 7^1\times {\mathrm{149}}^1$

素因数の和:187

約数の個数: 112

約数和(自身を含む): 117957600

約数和(自身を除く): 75236320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 149, 160, 224, 256, 280, 298, 320, 448, 512, 560, 596, 640, 745, 896, 1024, 1043, 1120, 1192, 1280, 1490, 1792, 2048, 2086, 2240, 2384, 2560, 2980, 3584, 4096, 4172, 4480, 4768, 5120, 5215, 5960, 7168, 8192, 8344, 8960, 9536, 10240, 10430, 11920, 14336, 16688, 17920, 19072, 20480, 20860, 23840, 28672, 33376, 35840, 38144, 40960, 41720, 47680, 57344, 66752, 71680, 76288, 83440, 95360, 133504, 143360, 152576, 166880, 190720, 267008, 286720, 305152, 333760, 381440, 534016, 610304, 667520, 762880, 1068032, 1220608, 1335040, 1525760, 2136064, 2670080, 3051520, 4272128, 5340160, 6103040, 8544256, 10680320, 21360640, 42721280]

約数ペア:

[(1, 42721280), (2, 21360640), (4, 10680320), (5, 8544256), (7, 6103040), (8, 5340160), (10, 4272128), (14, 3051520), (16, 2670080), (20, 2136064), (28, 1525760), (32, 1335040), (35, 1220608), (40, 1068032), (56, 762880), (64, 667520), (70, 610304), (80, 534016), (112, 381440), (128, 333760), (140, 305152), (149, 286720), (160, 267008), (224, 190720), (256, 166880), (280, 152576), (298, 143360), (320, 133504), (448, 95360), (512, 83440), (560, 76288), (596, 71680), (640, 66752), (745, 57344), (896, 47680), (1024, 41720), (1043, 40960), (1120, 38144), (1192, 35840), (1280, 33376), (1490, 28672), (1792, 23840), (2048, 20860), (2086, 20480), (2240, 19072), (2384, 17920), (2560, 16688), (2980, 14336), (3584, 11920), (4096, 10430), (4172, 10240), (4480, 9536), (4768, 8960), (5120, 8344), (5215, 8192), (5960, 7168)]