208585980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1364

約数の個数: 144

約数和(自身を含む): 676166400

約数和(自身を除く): 467580420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 45, 58, 60, 62, 87, 90, 93, 116, 124, 145, 155, 174, 180, 186, 261, 279, 290, 310, 348, 372, 435, 465, 522, 558, 580, 620, 870, 899, 930, 1044, 1116, 1289, 1305, 1395, 1740, 1798, 1860, 2578, 2610, 2697, 2790, 3596, 3867, 4495, 5156, 5220, 5394, 5580, 6445, 7734, 8091, 8990, 10788, 11601, 12890, 13485, 15468, 16182, 17980, 19335, 23202, 25780, 26970, 32364, 37381, 38670, 39959, 40455, 46404, 53940, 58005, 74762, 77340, 79918, 80910, 112143, 116010, 119877, 149524, 159836, 161820, 186905, 199795, 224286, 232020, 239754, 336429, 359631, 373810, 399590, 448572, 479508, 560715, 599385, 672858, 719262, 747620, 799180, 1121430, 1158811, 1198770, 1345716, 1438524, 1682145, 1798155, 2242860, 2317622, 2397540, 3364290, 3476433, 3596310, 4635244, 5794055, 6728580, 6952866, 7192620, 10429299, 11588110, 13905732, 17382165, 20858598, 23176220, 34764330, 41717196, 52146495, 69528660, 104292990, 208585980]

約数ペア:

[(1, 208585980), (2, 104292990), (3, 69528660), (4, 52146495), (5, 41717196), (6, 34764330), (9, 23176220), (10, 20858598), (12, 17382165), (15, 13905732), (18, 11588110), (20, 10429299), (29, 7192620), (30, 6952866), (31, 6728580), (36, 5794055), (45, 4635244), (58, 3596310), (60, 3476433), (62, 3364290), (87, 2397540), (90, 2317622), (93, 2242860), (116, 1798155), (124, 1682145), (145, 1438524), (155, 1345716), (174, 1198770), (180, 1158811), (186, 1121430), (261, 799180), (279, 747620), (290, 719262), (310, 672858), (348, 599385), (372, 560715), (435, 479508), (465, 448572), (522, 399590), (558, 373810), (580, 359631), (620, 336429), (870, 239754), (899, 232020), (930, 224286), (1044, 199795), (1116, 186905), (1289, 161820), (1305, 159836), (1395, 149524), (1740, 119877), (1798, 116010), (1860, 112143), (2578, 80910), (2610, 79918), (2697, 77340), (2790, 74762), (3596, 58005), (3867, 53940), (4495, 46404), (5156, 40455), (5220, 39959), (5394, 38670), (5580, 37381), (6445, 32364), (7734, 26970), (8091, 25780), (8990, 23202), (10788, 19335), (11601, 17980), (12890, 16182), (13485, 15468)]