18486090

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{9781}}^1$

素因数の和:9804

約数の個数: 64

約数和(自身を含む): 56344320

約数和(自身を除く): 37858230

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, 9781, 19562, 29343, 48905, 58686, 68467, 88029, 97810, 136934, 146715, 176058, 205401, 264087, 293430, 342335, 410802, 440145, 528174, 616203, 684670, 880290, 1027005, 1232406, 1320435, 1848609, 2054010, 2640870, 3081015, 3697218, 6162030, 9243045, 18486090]

約数ペア:

[(1, 18486090), (2, 9243045), (3, 6162030), (5, 3697218), (6, 3081015), (7, 2640870), (9, 2054010), (10, 1848609), (14, 1320435), (15, 1232406), (18, 1027005), (21, 880290), (27, 684670), (30, 616203), (35, 528174), (42, 440145), (45, 410802), (54, 342335), (63, 293430), (70, 264087), (90, 205401), (105, 176058), (126, 146715), (135, 136934), (189, 97810), (210, 88029), (270, 68467), (315, 58686), (378, 48905), (630, 29343), (945, 19562), (1890, 9781)]