20764755

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 80

約数和(自身を含む): 41817600

約数和(自身を除く): 21052845

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 59, 79, 81, 99, 135, 165, 177, 237, 295, 297, 395, 405, 495, 531, 649, 711, 869, 885, 891, 1185, 1485, 1593, 1947, 2133, 2607, 2655, 3245, 3555, 4345, 4455, 4661, 4779, 5841, 6399, 7821, 7965, 9735, 10665, 13035, 13983, 17523, 23305, 23463, 23895, 29205, 31995, 39105, 41949, 51271, 52569, 69915, 70389, 87615, 117315, 125847, 153813, 209745, 256355, 262845, 351945, 377541, 461439, 629235, 769065, 1384317, 1887705, 2307195, 4152951, 6921585, 20764755]

約数ペア:

[(1, 20764755), (3, 6921585), (5, 4152951), (9, 2307195), (11, 1887705), (15, 1384317), (27, 769065), (33, 629235), (45, 461439), (55, 377541), (59, 351945), (79, 262845), (81, 256355), (99, 209745), (135, 153813), (165, 125847), (177, 117315), (237, 87615), (295, 70389), (297, 69915), (395, 52569), (405, 51271), (495, 41949), (531, 39105), (649, 31995), (711, 29205), (869, 23895), (885, 23463), (891, 23305), (1185, 17523), (1485, 13983), (1593, 13035), (1947, 10665), (2133, 9735), (2607, 7965), (2655, 7821), (3245, 6399), (3555, 5841), (4345, 4779), (4455, 4661)]