28808865

素因数分解:

$3^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 52468416

約数和(自身を除く): 23659551

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 181, 243, 393, 405, 543, 655, 905, 1179, 1215, 1629, 1965, 2715, 3537, 4887, 5895, 8145, 10611, 14661, 17685, 23711, 24435, 31833, 43983, 53055, 71133, 73305, 118555, 159165, 213399, 219915, 355665, 640197, 1066995, 1920591, 3200985, 5761773, 9602955, 28808865]

約数ペア:

[(1, 28808865), (3, 9602955), (5, 5761773), (9, 3200985), (15, 1920591), (27, 1066995), (45, 640197), (81, 355665), (131, 219915), (135, 213399), (181, 159165), (243, 118555), (393, 73305), (405, 71133), (543, 53055), (655, 43983), (905, 31833), (1179, 24435), (1215, 23711), (1629, 17685), (1965, 14661), (2715, 10611), (3537, 8145), (4887, 5895)]