71566840

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{3557}}^1$

素因数の和:4071

約数の個数: 32

約数和(自身を含む): 161390880

約数和(自身を除く): 89824040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 2012, 2515, 3557, 4024, 5030, 7114, 10060, 14228, 17785, 20120, 28456, 35570, 71140, 142280, 1789171, 3578342, 7156684, 8945855, 14313368, 17891710, 35783420, 71566840]

約数ペア:

[(1, 71566840), (2, 35783420), (4, 17891710), (5, 14313368), (8, 8945855), (10, 7156684), (20, 3578342), (40, 1789171), (503, 142280), (1006, 71140), (2012, 35570), (2515, 28456), (3557, 20120), (4024, 17785), (5030, 14228), (7114, 10060)]