208723515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13901}}^1$

素因数の和:13940

約数の個数: 64

約数和(自身を含む): 448422912

約数和(自身を除く): 239699397

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 143, 165, 195, 231, 273, 385, 429, 455, 715, 1001, 1155, 1365, 2145, 3003, 5005, 13901, 15015, 41703, 69505, 97307, 152911, 180713, 208515, 291921, 458733, 486535, 542139, 764555, 903565, 1070377, 1264991, 1459605, 1987843, 2293665, 2710695, 3211131, 3794973, 5351885, 5963529, 6324955, 9939215, 13914901, 16055655, 18974865, 29817645, 41744703, 69574505, 208723515]

約数ペア:

[(1, 208723515), (3, 69574505), (5, 41744703), (7, 29817645), (11, 18974865), (13, 16055655), (15, 13914901), (21, 9939215), (33, 6324955), (35, 5963529), (39, 5351885), (55, 3794973), (65, 3211131), (77, 2710695), (91, 2293665), (105, 1987843), (143, 1459605), (165, 1264991), (195, 1070377), (231, 903565), (273, 764555), (385, 542139), (429, 486535), (455, 458733), (715, 291921), (1001, 208515), (1155, 180713), (1365, 152911), (2145, 97307), (3003, 69505), (5005, 41703), (13901, 15015)]