215989865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15313}}^1$

素因数の和:15369

約数の個数: 32

約数和(自身を含む): 329312256

約数和(自身を除く): 113322391

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 14105, 15313, 76565, 107191, 199069, 474703, 535955, 995345, 1393483, 2373515, 3322921, 6171139, 6967415, 16614605, 30855695, 43197973, 215989865]

約数ペア:

[(1, 215989865), (5, 43197973), (7, 30855695), (13, 16614605), (31, 6967415), (35, 6171139), (65, 3322921), (91, 2373515), (155, 1393483), (217, 995345), (403, 535955), (455, 474703), (1085, 199069), (2015, 107191), (2821, 76565), (14105, 15313)]