15121225

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1305

約数の個数: 24

約数和(自身を含む): 21748608

約数和(自身を除く): 6627383

約数列:

[1, 5, 7, 25, 35, 71, 175, 355, 497, 1217, 1775, 2485, 6085, 8519, 12425, 30425, 42595, 86407, 212975, 432035, 604849, 2160175, 3024245, 15121225]

約数ペア:

[(1, 15121225), (5, 3024245), (7, 2160175), (25, 604849), (35, 432035), (71, 212975), (175, 86407), (355, 42595), (497, 30425), (1217, 12425), (1775, 8519), (2485, 6085)]