78328215

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{3947}}^1$

素因数の和:3978

約数の個数: 60

約数和(自身を含む): 163376136

約数和(自身を除く): 85047921

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 1323, 2205, 2835, 3947, 3969, 6615, 11841, 19735, 19845, 27629, 35523, 59205, 82887, 106569, 138145, 177615, 193403, 248661, 319707, 414435, 532845, 580209, 745983, 967015, 1243305, 1598535, 1740627, 2237949, 2901045, 3729915, 5221881, 8703135, 11189745, 15665643, 26109405, 78328215]

約数ペア:

[(1, 78328215), (3, 26109405), (5, 15665643), (7, 11189745), (9, 8703135), (15, 5221881), (21, 3729915), (27, 2901045), (35, 2237949), (45, 1740627), (49, 1598535), (63, 1243305), (81, 967015), (105, 745983), (135, 580209), (147, 532845), (189, 414435), (245, 319707), (315, 248661), (405, 193403), (441, 177615), (567, 138145), (735, 106569), (945, 82887), (1323, 59205), (2205, 35523), (2835, 27629), (3947, 19845), (3969, 19735), (6615, 11841)]