8727320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 22809600

約数和(自身を除く): 14082280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 439, 497, 568, 710, 878, 994, 1420, 1756, 1988, 2195, 2485, 2840, 3073, 3512, 3976, 4390, 4970, 6146, 8780, 9940, 12292, 15365, 17560, 19880, 24584, 30730, 31169, 61460, 62338, 122920, 124676, 155845, 218183, 249352, 311690, 436366, 623380, 872732, 1090915, 1246760, 1745464, 2181830, 4363660, 8727320]

約数ペア:

[(1, 8727320), (2, 4363660), (4, 2181830), (5, 1745464), (7, 1246760), (8, 1090915), (10, 872732), (14, 623380), (20, 436366), (28, 311690), (35, 249352), (40, 218183), (56, 155845), (70, 124676), (71, 122920), (140, 62338), (142, 61460), (280, 31169), (284, 30730), (355, 24584), (439, 19880), (497, 17560), (568, 15365), (710, 12292), (878, 9940), (994, 8780), (1420, 6146), (1756, 4970), (1988, 4390), (2195, 3976), (2485, 3512), (2840, 3073)]