69872180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1283}}^1$

素因数の和:1688

約数の個数: 48

約数和(自身を含む): 168255360

約数和(自身を除く): 98383180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1283, 1556, 1945, 2566, 2723, 3890, 5132, 5446, 6415, 7780, 8981, 10892, 12830, 13615, 17962, 25660, 27230, 35924, 44905, 54460, 89810, 179620, 499087, 998174, 1996348, 2495435, 3493609, 4990870, 6987218, 9981740, 13974436, 17468045, 34936090, 69872180]

約数ペア:

[(1, 69872180), (2, 34936090), (4, 17468045), (5, 13974436), (7, 9981740), (10, 6987218), (14, 4990870), (20, 3493609), (28, 2495435), (35, 1996348), (70, 998174), (140, 499087), (389, 179620), (778, 89810), (1283, 54460), (1556, 44905), (1945, 35924), (2566, 27230), (2723, 25660), (3890, 17962), (5132, 13615), (5446, 12830), (6415, 10892), (7780, 8981)]