20175072379

素因数分解:

$7^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 27444925440

約数和(自身を除く): 7269853061

約数列:

[1, 7, 11, 29, 49, 53, 71, 77, 203, 319, 343, 371, 497, 539, 583, 781, 1421, 1537, 2059, 2233, 2401, 2597, 3479, 3763, 3773, 4081, 5467, 9947, 10759, 14413, 15631, 16807, 16907, 18179, 22649, 24353, 26341, 26411, 28567, 38269, 41393, 69629, 75313, 100891, 109127, 109417, 118349, 127253, 158543, 170471, 184387, 184877, 199969, 267883, 289751, 487403, 527191, 706237, 763889, 765919, 828443, 890771, 1109801, 1193297, 1200397, 1290709, 1399783, 1875181, 2028257, 3690337, 4943659, 5347223, 5361433, 5799101, 7768607, 8402779, 9034963, 9798481, 13126267, 14197799, 25832359, 34605613, 37430561, 40593707, 54380249, 58819453, 63244741, 99384593, 262013927, 284155949, 380661743, 411736171, 695692151, 1834097489, 2882153197, 20175072379]

約数ペア:

[(1, 20175072379), (7, 2882153197), (11, 1834097489), (29, 695692151), (49, 411736171), (53, 380661743), (71, 284155949), (77, 262013927), (203, 99384593), (319, 63244741), (343, 58819453), (371, 54380249), (497, 40593707), (539, 37430561), (583, 34605613), (781, 25832359), (1421, 14197799), (1537, 13126267), (2059, 9798481), (2233, 9034963), (2401, 8402779), (2597, 7768607), (3479, 5799101), (3763, 5361433), (3773, 5347223), (4081, 4943659), (5467, 3690337), (9947, 2028257), (10759, 1875181), (14413, 1399783), (15631, 1290709), (16807, 1200397), (16907, 1193297), (18179, 1109801), (22649, 890771), (24353, 828443), (26341, 765919), (26411, 763889), (28567, 706237), (38269, 527191), (41393, 487403), (69629, 289751), (75313, 267883), (100891, 199969), (109127, 184877), (109417, 184387), (118349, 170471), (127253, 158543)]