289011815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{739}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 379779840

約数和(自身を除く): 90768025

約数列:

[1, 5, 17, 43, 85, 107, 215, 535, 731, 739, 1819, 3655, 3695, 4601, 9095, 12563, 23005, 31777, 62815, 78217, 79073, 158885, 391085, 395365, 540209, 1344241, 2701045, 3400139, 6721205, 17000695, 57802363, 289011815]

約数ペア:

[(1, 289011815), (5, 57802363), (17, 17000695), (43, 6721205), (85, 3400139), (107, 2701045), (215, 1344241), (535, 540209), (731, 395365), (739, 391085), (1819, 158885), (3655, 79073), (3695, 78217), (4601, 62815), (9095, 31777), (12563, 23005)]