2980905

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 5056128

約数和(自身を除く): 2075223

約数列:

[1, 3, 5, 15, 37, 41, 111, 123, 131, 185, 205, 393, 555, 615, 655, 1517, 1965, 4551, 4847, 5371, 7585, 14541, 16113, 22755, 24235, 26855, 72705, 80565, 198727, 596181, 993635, 2980905]

約数ペア:

[(1, 2980905), (3, 993635), (5, 596181), (15, 198727), (37, 80565), (41, 72705), (111, 26855), (123, 24235), (131, 22755), (185, 16113), (205, 14541), (393, 7585), (555, 5371), (615, 4847), (655, 4551), (1517, 1965)]