25781775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 45916704

約数和(自身を除く): 20134929

約数列:

[1, 3, 5, 15, 17, 25, 51, 73, 75, 85, 219, 255, 277, 365, 425, 831, 1095, 1241, 1275, 1385, 1825, 3723, 4155, 4709, 5475, 6205, 6925, 14127, 18615, 20221, 20775, 23545, 31025, 60663, 70635, 93075, 101105, 117725, 303315, 343757, 353175, 505525, 1031271, 1516575, 1718785, 5156355, 8593925, 25781775]

約数ペア:

[(1, 25781775), (3, 8593925), (5, 5156355), (15, 1718785), (17, 1516575), (25, 1031271), (51, 505525), (73, 353175), (75, 343757), (85, 303315), (219, 117725), (255, 101105), (277, 93075), (365, 70635), (425, 60663), (831, 31025), (1095, 23545), (1241, 20775), (1275, 20221), (1385, 18615), (1825, 14127), (3723, 6925), (4155, 6205), (4709, 5475)]