289597840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{73877}}^1$

素因数の和:73904

約数の個数: 60

約数和(自身を含む): 783254556

約数和(自身を除く): 493656716

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, 73877, 147754, 295508, 369385, 517139, 591016, 738770, 1034278, 1182032, 1477540, 2068556, 2585695, 2955080, 3619973, 4137112, 5171390, 5910160, 7239946, 8274224, 10342780, 14479892, 18099865, 20685560, 28959784, 36199730, 41371120, 57919568, 72399460, 144798920, 289597840]

約数ペア:

[(1, 289597840), (2, 144798920), (4, 72399460), (5, 57919568), (7, 41371120), (8, 36199730), (10, 28959784), (14, 20685560), (16, 18099865), (20, 14479892), (28, 10342780), (35, 8274224), (40, 7239946), (49, 5910160), (56, 5171390), (70, 4137112), (80, 3619973), (98, 2955080), (112, 2585695), (140, 2068556), (196, 1477540), (245, 1182032), (280, 1034278), (392, 738770), (490, 591016), (560, 517139), (784, 369385), (980, 295508), (1960, 147754), (3920, 73877)]