280804995

素因数分解:

$3^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8287}}^1$

素因数の和:8552

約数の個数: 32

約数和(自身を含む): 501258240

約数和(自身を除く): 220453245

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 251, 753, 1255, 2259, 3765, 6777, 8287, 11295, 24861, 33885, 41435, 74583, 124305, 223749, 372915, 1118745, 2080037, 6240111, 10400185, 18720333, 31200555, 56160999, 93601665, 280804995]

約数ペア:

[(1, 280804995), (3, 93601665), (5, 56160999), (9, 31200555), (15, 18720333), (27, 10400185), (45, 6240111), (135, 2080037), (251, 1118745), (753, 372915), (1255, 223749), (2259, 124305), (3765, 74583), (6777, 41435), (8287, 33885), (11295, 24861)]