889528315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 1264830336

約数和(自身を除く): 375302021

約数列:

[1, 5, 13, 17, 43, 65, 85, 97, 193, 215, 221, 485, 559, 731, 965, 1105, 1261, 1649, 2509, 2795, 3281, 3655, 4171, 6305, 8245, 8299, 9503, 12545, 16405, 18721, 20855, 21437, 41495, 42653, 47515, 54223, 70907, 93605, 107185, 107887, 141083, 213265, 243373, 271115, 318257, 354535, 539435, 705415, 805003, 921791, 1216865, 1591285, 1834079, 4025015, 4137341, 4608955, 9170395, 10465039, 13685051, 20686705, 52325195, 68425255, 177905663, 889528315]

約数ペア:

[(1, 889528315), (5, 177905663), (13, 68425255), (17, 52325195), (43, 20686705), (65, 13685051), (85, 10465039), (97, 9170395), (193, 4608955), (215, 4137341), (221, 4025015), (485, 1834079), (559, 1591285), (731, 1216865), (965, 921791), (1105, 805003), (1261, 705415), (1649, 539435), (2509, 354535), (2795, 318257), (3281, 271115), (3655, 243373), (4171, 213265), (6305, 141083), (8245, 107887), (8299, 107185), (9503, 93605), (12545, 70907), (16405, 54223), (18721, 47515), (20855, 42653), (21437, 41495)]