128899719

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 207567360

約数和(自身を除く): 78667641

約数列:

[1, 3, 9, 13, 39, 59, 71, 117, 177, 213, 263, 531, 639, 767, 789, 923, 2301, 2367, 2769, 3419, 4189, 6903, 8307, 10257, 12567, 15517, 18673, 30771, 37701, 46551, 54457, 56019, 139653, 163371, 168057, 201721, 242749, 490113, 605163, 728247, 1101707, 1815489, 2184741, 3305121, 9915363, 14322191, 42966573, 128899719]

約数ペア:

[(1, 128899719), (3, 42966573), (9, 14322191), (13, 9915363), (39, 3305121), (59, 2184741), (71, 1815489), (117, 1101707), (177, 728247), (213, 605163), (263, 490113), (531, 242749), (639, 201721), (767, 168057), (789, 163371), (923, 139653), (2301, 56019), (2367, 54457), (2769, 46551), (3419, 37701), (4189, 30771), (6903, 18673), (8307, 15517), (10257, 12567)]