221333744

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 472469760

約数和(自身を除く): 251136016

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 89, 136, 164, 178, 223, 272, 328, 356, 446, 656, 697, 712, 892, 1394, 1424, 1513, 1784, 2788, 3026, 3568, 3649, 3791, 5576, 6052, 7298, 7582, 9143, 11152, 12104, 14596, 15164, 18286, 19847, 24208, 29192, 30328, 36572, 39694, 58384, 60656, 62033, 73144, 79388, 124066, 146288, 155431, 158776, 248132, 310862, 317552, 337399, 496264, 621724, 674798, 813727, 992528, 1243448, 1349596, 1627454, 2486896, 2699192, 3254908, 5398384, 6509816, 13019632, 13833359, 27666718, 55333436, 110666872, 221333744]

約数ペア:

[(1, 221333744), (2, 110666872), (4, 55333436), (8, 27666718), (16, 13833359), (17, 13019632), (34, 6509816), (41, 5398384), (68, 3254908), (82, 2699192), (89, 2486896), (136, 1627454), (164, 1349596), (178, 1243448), (223, 992528), (272, 813727), (328, 674798), (356, 621724), (446, 496264), (656, 337399), (697, 317552), (712, 310862), (892, 248132), (1394, 158776), (1424, 155431), (1513, 146288), (1784, 124066), (2788, 79388), (3026, 73144), (3568, 62033), (3649, 60656), (3791, 58384), (5576, 39694), (6052, 36572), (7298, 30328), (7582, 29192), (9143, 24208), (11152, 19847), (12104, 18286), (14596, 15164)]