15391216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:481

約数の個数: 40

約数和(自身を含む): 31672080

約数和(自身を除く): 16280864

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 257, 304, 394, 514, 788, 1028, 1576, 2056, 3152, 3743, 4112, 4883, 7486, 9766, 14972, 19532, 29944, 39064, 50629, 59888, 78128, 101258, 202516, 405032, 810064, 961951, 1923902, 3847804, 7695608, 15391216]

約数ペア:

[(1, 15391216), (2, 7695608), (4, 3847804), (8, 1923902), (16, 961951), (19, 810064), (38, 405032), (76, 202516), (152, 101258), (197, 78128), (257, 59888), (304, 50629), (394, 39064), (514, 29944), (788, 19532), (1028, 14972), (1576, 9766), (2056, 7486), (3152, 4883), (3743, 4112)]