289987516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{829}}^1$

素因数の和:915

約数の個数: 72

約数和(自身を含む): 646164960

約数和(自身を除く): 356177444

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 829, 868, 961, 1612, 1658, 1922, 2821, 3316, 3844, 5642, 5803, 6727, 10777, 11284, 11606, 12493, 13454, 21554, 23212, 24986, 25699, 26908, 43108, 49972, 51398, 75439, 87451, 102796, 150878, 174902, 179893, 301756, 334087, 349804, 359786, 668174, 719572, 796669, 1336348, 1593338, 2338609, 3186676, 4677218, 5576683, 9354436, 10356697, 11153366, 20713394, 22306732, 41426788, 72496879, 144993758, 289987516]

約数ペア:

[(1, 289987516), (2, 144993758), (4, 72496879), (7, 41426788), (13, 22306732), (14, 20713394), (26, 11153366), (28, 10356697), (31, 9354436), (52, 5576683), (62, 4677218), (91, 3186676), (124, 2338609), (182, 1593338), (217, 1336348), (364, 796669), (403, 719572), (434, 668174), (806, 359786), (829, 349804), (868, 334087), (961, 301756), (1612, 179893), (1658, 174902), (1922, 150878), (2821, 102796), (3316, 87451), (3844, 75439), (5642, 51398), (5803, 49972), (6727, 43108), (10777, 26908), (11284, 25699), (11606, 24986), (12493, 23212), (13454, 21554)]