255645

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:66

約数の個数: 48

約数和(自身を含む): 524160

約数和(自身を除く): 268515

約数列:

[1, 3, 5, 9, 13, 15, 19, 23, 39, 45, 57, 65, 69, 95, 115, 117, 171, 195, 207, 247, 285, 299, 345, 437, 585, 741, 855, 897, 1035, 1235, 1311, 1495, 2185, 2223, 2691, 3705, 3933, 4485, 5681, 6555, 11115, 13455, 17043, 19665, 28405, 51129, 85215, 255645]

約数ペア:

[(1, 255645), (3, 85215), (5, 51129), (9, 28405), (13, 19665), (15, 17043), (19, 13455), (23, 11115), (39, 6555), (45, 5681), (57, 4485), (65, 3933), (69, 3705), (95, 2691), (115, 2223), (117, 2185), (171, 1495), (195, 1311), (207, 1235), (247, 1035), (285, 897), (299, 855), (345, 741), (437, 585)]