388804955

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1621}}^1$

素因数の和:1740

約数の個数: 48

約数和(自身を含む): 599101920

約数和(自身を除く): 210296965

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 89, 245, 385, 445, 539, 623, 979, 1621, 2695, 3115, 4361, 4895, 6853, 8105, 11347, 17831, 21805, 34265, 47971, 56735, 79429, 89155, 124817, 144269, 239855, 397145, 624085, 721345, 873719, 1009883, 1586959, 4368595, 5049415, 7069181, 7934795, 11108713, 35345905, 55543565, 77760991, 388804955]

約数ペア:

[(1, 388804955), (5, 77760991), (7, 55543565), (11, 35345905), (35, 11108713), (49, 7934795), (55, 7069181), (77, 5049415), (89, 4368595), (245, 1586959), (385, 1009883), (445, 873719), (539, 721345), (623, 624085), (979, 397145), (1621, 239855), (2695, 144269), (3115, 124817), (4361, 89155), (4895, 79429), (6853, 56735), (8105, 47971), (11347, 34265), (17831, 21805)]