28771565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 9797395

約数列:

[1, 5, 17, 31, 61, 85, 155, 179, 305, 527, 895, 1037, 1891, 2635, 3043, 5185, 5549, 9455, 10919, 15215, 27745, 32147, 54595, 94333, 160735, 185623, 338489, 471665, 928115, 1692445, 5754313, 28771565]

約数ペア:

[(1, 28771565), (5, 5754313), (17, 1692445), (31, 928115), (61, 471665), (85, 338489), (155, 185623), (179, 160735), (305, 94333), (527, 54595), (895, 32147), (1037, 27745), (1891, 15215), (2635, 10919), (3043, 9455), (5185, 5549)]