140784640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{887}}^1$

素因数の和:943

約数の個数: 88

約数和(自身を含む): 349005312

約数和(自身を除く): 208220672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 887, 992, 1024, 1240, 1280, 1774, 1984, 2480, 2560, 3548, 3968, 4435, 4960, 5120, 7096, 7936, 8870, 9920, 14192, 15872, 17740, 19840, 27497, 28384, 31744, 35480, 39680, 54994, 56768, 70960, 79360, 109988, 113536, 137485, 141920, 158720, 219976, 227072, 274970, 283840, 439952, 454144, 549940, 567680, 879904, 908288, 1099880, 1135360, 1759808, 2199760, 2270720, 3519616, 4399520, 4541440, 7039232, 8799040, 14078464, 17598080, 28156928, 35196160, 70392320, 140784640]

約数ペア:

[(1, 140784640), (2, 70392320), (4, 35196160), (5, 28156928), (8, 17598080), (10, 14078464), (16, 8799040), (20, 7039232), (31, 4541440), (32, 4399520), (40, 3519616), (62, 2270720), (64, 2199760), (80, 1759808), (124, 1135360), (128, 1099880), (155, 908288), (160, 879904), (248, 567680), (256, 549940), (310, 454144), (320, 439952), (496, 283840), (512, 274970), (620, 227072), (640, 219976), (887, 158720), (992, 141920), (1024, 137485), (1240, 113536), (1280, 109988), (1774, 79360), (1984, 70960), (2480, 56768), (2560, 54994), (3548, 39680), (3968, 35480), (4435, 31744), (4960, 28384), (5120, 27497), (7096, 19840), (7936, 17740), (8870, 15872), (9920, 14192)]