18765810

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{9929}}^1$

素因数の和:9952

約数の個数: 64

約数和(自身を含む): 57196800

約数和(自身を除く): 38430990

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 9929, 19858, 29787, 49645, 59574, 69503, 89361, 99290, 139006, 148935, 178722, 208509, 268083, 297870, 347515, 417018, 446805, 536166, 625527, 695030, 893610, 1042545, 1251054, 1340415, 1876581, 2085090, 2680830, 3127635, 3753162, 6255270, 9382905, 18765810]

約数ペア:

[(1, 18765810), (2, 9382905), (3, 6255270), (5, 3753162), (6, 3127635), (7, 2680830), (9, 2085090), (10, 1876581), (14, 1340415), (15, 1251054), (18, 1042545), (21, 893610), (27, 695030), (30, 625527), (35, 536166), (42, 446805), (45, 417018), (54, 347515), (63, 297870), (70, 268083), (90, 208509), (105, 178722), (126, 148935), (135, 139006), (189, 99290), (210, 89361), (270, 69503), (315, 59574), (378, 49645), (630, 29787), (945, 19858), (1890, 9929)]