25310285

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 41109120

約数和(自身を除く): 15798835

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 169, 385, 389, 455, 715, 845, 1001, 1183, 1859, 1945, 2723, 4279, 5005, 5057, 5915, 9295, 13013, 13615, 21395, 25285, 29953, 35399, 55627, 65065, 65741, 149765, 176995, 278135, 328705, 389389, 460187, 723151, 1946945, 2300935, 3615755, 5062057, 25310285]

約数ペア:

[(1, 25310285), (5, 5062057), (7, 3615755), (11, 2300935), (13, 1946945), (35, 723151), (55, 460187), (65, 389389), (77, 328705), (91, 278135), (143, 176995), (169, 149765), (385, 65741), (389, 65065), (455, 55627), (715, 35399), (845, 29953), (1001, 25285), (1183, 21395), (1859, 13615), (1945, 13013), (2723, 9295), (4279, 5915), (5005, 5057)]