9990645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 20113920

約数和(自身を除く): 10123275

約数列:

[1, 3, 5, 7, 15, 17, 21, 29, 35, 51, 85, 87, 105, 119, 145, 193, 203, 255, 357, 435, 493, 579, 595, 609, 965, 1015, 1351, 1479, 1785, 2465, 2895, 3045, 3281, 3451, 4053, 5597, 6755, 7395, 9843, 10353, 16405, 16791, 17255, 20265, 22967, 27985, 39179, 49215, 51765, 68901, 83955, 95149, 114835, 117537, 195895, 285447, 344505, 475745, 587685, 666043, 1427235, 1998129, 3330215, 9990645]

約数ペア:

[(1, 9990645), (3, 3330215), (5, 1998129), (7, 1427235), (15, 666043), (17, 587685), (21, 475745), (29, 344505), (35, 285447), (51, 195895), (85, 117537), (87, 114835), (105, 95149), (119, 83955), (145, 68901), (193, 51765), (203, 49215), (255, 39179), (357, 27985), (435, 22967), (493, 20265), (579, 17255), (595, 16791), (609, 16405), (965, 10353), (1015, 9843), (1351, 7395), (1479, 6755), (1785, 5597), (2465, 4053), (2895, 3451), (3045, 3281)]