81360405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1427}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 162175104

約数和(自身を除く): 80814699

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 181, 315, 543, 905, 1267, 1427, 1629, 2715, 3801, 4281, 6335, 7135, 8145, 9989, 11403, 12843, 19005, 21405, 29967, 49945, 57015, 64215, 89901, 149835, 258287, 449505, 774861, 1291435, 1808009, 2324583, 3874305, 5424027, 9040045, 11622915, 16272081, 27120135, 81360405]

約数ペア:

[(1, 81360405), (3, 27120135), (5, 16272081), (7, 11622915), (9, 9040045), (15, 5424027), (21, 3874305), (35, 2324583), (45, 1808009), (63, 1291435), (105, 774861), (181, 449505), (315, 258287), (543, 149835), (905, 89901), (1267, 64215), (1427, 57015), (1629, 49945), (2715, 29967), (3801, 21405), (4281, 19005), (6335, 12843), (7135, 11403), (8145, 9989)]