291228560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{74293}}^1$

素因数の和:74320

約数の個数: 60

約数和(自身を含む): 787664988

約数和(自身を除く): 496436428

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 74293, 148586, 297172, 371465, 520051, 594344, 742930, 1040102, 1188688, 1485860, 2080204, 2600255, 2971720, 3640357, 4160408, 5200510, 5943440, 7280714, 8320816, 10401020, 14561428, 18201785, 20802040, 29122856, 36403570, 41604080, 58245712, 72807140, 145614280, 291228560]

約数ペア:

[(1, 291228560), (2, 145614280), (4, 72807140), (5, 58245712), (7, 41604080), (8, 36403570), (10, 29122856), (14, 20802040), (16, 18201785), (20, 14561428), (28, 10401020), (35, 8320816), (40, 7280714), (49, 5943440), (56, 5200510), (70, 4160408), (80, 3640357), (98, 2971720), (112, 2600255), (140, 2080204), (196, 1485860), (245, 1188688), (280, 1040102), (392, 742930), (490, 594344), (560, 520051), (784, 371465), (980, 297172), (1960, 148586), (3920, 74293)]