25639460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16649}}^1$

素因数の和:16676

約数の個数: 48

約数和(自身を含む): 67132800

約数和(自身を除く): 41493340

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 16649, 33298, 66596, 83245, 116543, 166490, 183139, 233086, 332980, 366278, 466172, 582715, 732556, 915695, 1165430, 1281973, 1831390, 2330860, 2563946, 3662780, 5127892, 6409865, 12819730, 25639460]

約数ペア:

[(1, 25639460), (2, 12819730), (4, 6409865), (5, 5127892), (7, 3662780), (10, 2563946), (11, 2330860), (14, 1831390), (20, 1281973), (22, 1165430), (28, 915695), (35, 732556), (44, 582715), (55, 466172), (70, 366278), (77, 332980), (110, 233086), (140, 183139), (154, 166490), (220, 116543), (308, 83245), (385, 66596), (770, 33298), (1540, 16649)]