28782105

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 55074816

約数和(自身を除く): 26292711

約数列:

[1, 3, 5, 11, 15, 17, 31, 33, 51, 55, 85, 93, 155, 165, 187, 255, 331, 341, 465, 527, 561, 935, 993, 1023, 1581, 1655, 1705, 2635, 2805, 3641, 4965, 5115, 5627, 5797, 7905, 10261, 10923, 16881, 17391, 18205, 28135, 28985, 30783, 51305, 54615, 61897, 84405, 86955, 112871, 153915, 174437, 185691, 309485, 338613, 523311, 564355, 872185, 928455, 1693065, 1918807, 2616555, 5756421, 9594035, 28782105]

約数ペア:

[(1, 28782105), (3, 9594035), (5, 5756421), (11, 2616555), (15, 1918807), (17, 1693065), (31, 928455), (33, 872185), (51, 564355), (55, 523311), (85, 338613), (93, 309485), (155, 185691), (165, 174437), (187, 153915), (255, 112871), (331, 86955), (341, 84405), (465, 61897), (527, 54615), (561, 51305), (935, 30783), (993, 28985), (1023, 28135), (1581, 18205), (1655, 17391), (1705, 16881), (2635, 10923), (2805, 10261), (3641, 7905), (4965, 5797), (5115, 5627)]