28691235

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1459}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 54662400

約数和(自身を除く): 25971165

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1035, 1311, 1459, 2185, 3933, 4377, 6555, 7295, 13131, 19665, 21885, 27721, 33557, 65655, 83163, 100671, 138605, 167785, 249489, 302013, 415815, 503355, 637583, 1247445, 1510065, 1912749, 3187915, 5738247, 9563745, 28691235]

約数ペア:

[(1, 28691235), (3, 9563745), (5, 5738247), (9, 3187915), (15, 1912749), (19, 1510065), (23, 1247445), (45, 637583), (57, 503355), (69, 415815), (95, 302013), (115, 249489), (171, 167785), (207, 138605), (285, 100671), (345, 83163), (437, 65655), (855, 33557), (1035, 27721), (1311, 21885), (1459, 19665), (2185, 13131), (3933, 7295), (4377, 6555)]