17904425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 28283904

約数和(自身を除く): 10379479

約数列:

[1, 5, 7, 11, 25, 35, 55, 71, 77, 131, 175, 275, 355, 385, 497, 655, 781, 917, 1441, 1775, 1925, 2485, 3275, 3905, 4585, 5467, 7205, 9301, 10087, 12425, 19525, 22925, 27335, 36025, 46505, 50435, 65107, 102311, 136675, 232525, 252175, 325535, 511555, 716177, 1627675, 2557775, 3580885, 17904425]

約数ペア:

[(1, 17904425), (5, 3580885), (7, 2557775), (11, 1627675), (25, 716177), (35, 511555), (55, 325535), (71, 252175), (77, 232525), (131, 136675), (175, 102311), (275, 65107), (355, 50435), (385, 46505), (497, 36025), (655, 27335), (781, 22925), (917, 19525), (1441, 12425), (1775, 10087), (1925, 9301), (2485, 7205), (3275, 5467), (3905, 4585)]