138601925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 216950400

約数和(自身を除く): 78348475

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 89, 175, 275, 385, 445, 623, 809, 979, 1925, 2225, 3115, 4045, 4895, 5663, 6853, 8899, 15575, 20225, 24475, 28315, 34265, 44495, 62293, 72001, 141575, 171325, 222475, 311465, 360005, 504007, 792011, 1557325, 1800025, 2520035, 3960055, 5544077, 12600175, 19800275, 27720385, 138601925]

約数ペア:

[(1, 138601925), (5, 27720385), (7, 19800275), (11, 12600175), (25, 5544077), (35, 3960055), (55, 2520035), (77, 1800025), (89, 1557325), (175, 792011), (275, 504007), (385, 360005), (445, 311465), (623, 222475), (809, 171325), (979, 141575), (1925, 72001), (2225, 62293), (3115, 44495), (4045, 34265), (4895, 28315), (5663, 24475), (6853, 20225), (8899, 15575)]