205121745

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{268133}}^1$

素因数の和:268161

約数の個数: 24

約数和(自身を含む): 376460136

約数和(自身を除く): 171338391

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 268133, 804399, 1340665, 2413197, 4021995, 4558261, 12065985, 13674783, 22791305, 41024349, 68373915, 205121745]

約数ペア:

[(1, 205121745), (3, 68373915), (5, 41024349), (9, 22791305), (15, 13674783), (17, 12065985), (45, 4558261), (51, 4021995), (85, 2413197), (153, 1340665), (255, 804399), (765, 268133)]