20280884418

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{40429}}^1$

素因数の和:40528

約数の個数: 72

約数和(自身を含む): 46971978300

約数和(自身を除く): 26691093882

約数列:

[1, 2, 3, 6, 9, 18, 29, 31, 58, 62, 87, 93, 174, 186, 261, 279, 522, 558, 899, 961, 1798, 1922, 2697, 2883, 5394, 5766, 8091, 8649, 16182, 17298, 27869, 40429, 55738, 80858, 83607, 121287, 167214, 242574, 250821, 363861, 501642, 727722, 1172441, 1253299, 2344882, 2506598, 3517323, 3759897, 7034646, 7519794, 10551969, 11279691, 21103938, 22559382, 36345671, 38852269, 72691342, 77704538, 109037013, 116556807, 218074026, 233113614, 327111039, 349670421, 654222078, 699340842, 1126715801, 2253431602, 3380147403, 6760294806, 10140442209, 20280884418]

約数ペア:

[(1, 20280884418), (2, 10140442209), (3, 6760294806), (6, 3380147403), (9, 2253431602), (18, 1126715801), (29, 699340842), (31, 654222078), (58, 349670421), (62, 327111039), (87, 233113614), (93, 218074026), (174, 116556807), (186, 109037013), (261, 77704538), (279, 72691342), (522, 38852269), (558, 36345671), (899, 22559382), (961, 21103938), (1798, 11279691), (1922, 10551969), (2697, 7519794), (2883, 7034646), (5394, 3759897), (5766, 3517323), (8091, 2506598), (8649, 2344882), (16182, 1253299), (17298, 1172441), (27869, 727722), (40429, 501642), (55738, 363861), (80858, 250821), (83607, 242574), (121287, 167214)]