213480995

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 324703008

約数和(自身を除く): 111222013

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 97, 245, 455, 485, 637, 679, 691, 1261, 3185, 3395, 3455, 4753, 4837, 6305, 8827, 8983, 23765, 24185, 33859, 44135, 44915, 61789, 62881, 67027, 169295, 308945, 314405, 335135, 440167, 469189, 871351, 2200835, 2345945, 3284323, 4356755, 6099457, 16421615, 30497285, 42696199, 213480995]

約数ペア:

[(1, 213480995), (5, 42696199), (7, 30497285), (13, 16421615), (35, 6099457), (49, 4356755), (65, 3284323), (91, 2345945), (97, 2200835), (245, 871351), (455, 469189), (485, 440167), (637, 335135), (679, 314405), (691, 308945), (1261, 169295), (3185, 67027), (3395, 62881), (3455, 61789), (4753, 44915), (4837, 44135), (6305, 33859), (8827, 24185), (8983, 23765)]