20177881892

素因数分解:

$2^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{1483}}^1$

素因数の和:1766

約数の個数: 96

約数和(自身を含む): 42283315200

約数和(自身を除く): 22105433308

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 211, 329, 343, 422, 658, 686, 844, 1316, 1372, 1477, 1483, 2303, 2954, 2966, 4606, 5908, 5932, 9212, 9917, 10339, 10381, 16121, 19834, 20678, 20762, 32242, 39668, 41356, 41524, 64484, 69419, 69701, 72373, 72667, 138838, 139402, 144746, 145334, 277676, 278804, 289492, 290668, 312913, 485933, 487907, 508669, 625826, 971866, 975814, 1017338, 1251652, 1943732, 1951628, 2034676, 2190391, 3401531, 3415349, 4380782, 6803062, 6830698, 8761564, 13606124, 13661396, 14706911, 15332737, 23907443, 29413822, 30665474, 47814886, 58827644, 61330948, 95629772, 102948377, 107329159, 205896754, 214658318, 411793508, 429316636, 720638639, 1441277278, 2882554556, 5044470473, 10088940946, 20177881892]

約数ペア:

[(1, 20177881892), (2, 10088940946), (4, 5044470473), (7, 2882554556), (14, 1441277278), (28, 720638639), (47, 429316636), (49, 411793508), (94, 214658318), (98, 205896754), (188, 107329159), (196, 102948377), (211, 95629772), (329, 61330948), (343, 58827644), (422, 47814886), (658, 30665474), (686, 29413822), (844, 23907443), (1316, 15332737), (1372, 14706911), (1477, 13661396), (1483, 13606124), (2303, 8761564), (2954, 6830698), (2966, 6803062), (4606, 4380782), (5908, 3415349), (5932, 3401531), (9212, 2190391), (9917, 2034676), (10339, 1951628), (10381, 1943732), (16121, 1251652), (19834, 1017338), (20678, 975814), (20762, 971866), (32242, 625826), (39668, 508669), (41356, 487907), (41524, 485933), (64484, 312913), (69419, 290668), (69701, 289492), (72373, 278804), (72667, 277676), (138838, 145334), (139402, 144746)]