128335975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 185345280

約数和(自身を除く): 57009305

約数列:

[1, 5, 17, 19, 23, 25, 85, 95, 115, 323, 391, 425, 437, 475, 575, 691, 1615, 1955, 2185, 3455, 7429, 8075, 9775, 10925, 11747, 13129, 15893, 17275, 37145, 58735, 65645, 79465, 185725, 223193, 270181, 293675, 301967, 328225, 397325, 1115965, 1350905, 1509835, 5133439, 5579825, 6754525, 7549175, 25667195, 128335975]

約数ペア:

[(1, 128335975), (5, 25667195), (17, 7549175), (19, 6754525), (23, 5579825), (25, 5133439), (85, 1509835), (95, 1350905), (115, 1115965), (323, 397325), (391, 328225), (425, 301967), (437, 293675), (475, 270181), (575, 223193), (691, 185725), (1615, 79465), (1955, 65645), (2185, 58735), (3455, 37145), (7429, 17275), (8075, 15893), (9775, 13129), (10925, 11747)]