78902655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 142248960

約数和(自身を除く): 63346305

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 71, 123, 139, 195, 205, 213, 355, 417, 533, 615, 695, 923, 1065, 1599, 1807, 2085, 2665, 2769, 2911, 4615, 5421, 5699, 7995, 8733, 9035, 9869, 13845, 14555, 17097, 27105, 28495, 29607, 37843, 43665, 49345, 74087, 85485, 113529, 128297, 148035, 189215, 222261, 370435, 384891, 404629, 567645, 641485, 1111305, 1213887, 1924455, 2023145, 5260177, 6069435, 15780531, 26300885, 78902655]

約数ペア:

[(1, 78902655), (3, 26300885), (5, 15780531), (13, 6069435), (15, 5260177), (39, 2023145), (41, 1924455), (65, 1213887), (71, 1111305), (123, 641485), (139, 567645), (195, 404629), (205, 384891), (213, 370435), (355, 222261), (417, 189215), (533, 148035), (615, 128297), (695, 113529), (923, 85485), (1065, 74087), (1599, 49345), (1807, 43665), (2085, 37843), (2665, 29607), (2769, 28495), (2911, 27105), (4615, 17097), (5421, 14555), (5699, 13845), (7995, 9869), (8733, 9035)]