20515065

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 33782400

約数和(自身を除く): 13267335

約数列:

[1, 3, 5, 15, 67, 137, 149, 201, 335, 411, 447, 685, 745, 1005, 2055, 2235, 9179, 9983, 20413, 27537, 29949, 45895, 49915, 61239, 102065, 137685, 149745, 306195, 1367671, 4103013, 6838355, 20515065]

約数ペア:

[(1, 20515065), (3, 6838355), (5, 4103013), (15, 1367671), (67, 306195), (137, 149745), (149, 137685), (201, 102065), (335, 61239), (411, 49915), (447, 45895), (685, 29949), (745, 27537), (1005, 20413), (2055, 9983), (2235, 9179)]