13881081420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{85781}}^1$

素因数の和:85856

約数の個数: 144

約数和(自身を含む): 44963493120

約数和(自身を除く): 31082411700

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, 1305, 1395, 1740, 1798, 1860, 2610, 2697, 2790, 3596, 4495, 5220, 5394, 5580, 8091, 8990, 10788, 13485, 16182, 17980, 26970, 32364, 40455, 53940, 80910, 85781, 161820, 171562, 257343, 343124, 428905, 514686, 772029, 857810, 1029372, 1286715, 1544058, 1715620, 2487649, 2573430, 2659211, 3088116, 3860145, 4975298, 5146860, 5318422, 7462947, 7720290, 7977633, 9950596, 10636844, 12438245, 13296055, 14925894, 15440580, 15955266, 22388841, 23932899, 24876490, 26592110, 29851788, 31910532, 37314735, 39888165, 44777682, 47865798, 49752980, 53184220, 74629470, 77117119, 79776330, 89555364, 95731596, 111944205, 119664495, 149258940, 154234238, 159552660, 223888410, 231351357, 239328990, 308468476, 385585595, 447776820, 462702714, 478657980, 694054071, 771171190, 925405428, 1156756785, 1388108142, 1542342380, 2313513570, 2776216284, 3470270355, 4627027140, 6940540710, 13881081420]

約数ペア:

[(1, 13881081420), (2, 6940540710), (3, 4627027140), (4, 3470270355), (5, 2776216284), (6, 2313513570), (9, 1542342380), (10, 1388108142), (12, 1156756785), (15, 925405428), (18, 771171190), (20, 694054071), (29, 478657980), (30, 462702714), (31, 447776820), (36, 385585595), (45, 308468476), (58, 239328990), (60, 231351357), (62, 223888410), (87, 159552660), (90, 154234238), (93, 149258940), (116, 119664495), (124, 111944205), (145, 95731596), (155, 89555364), (174, 79776330), (180, 77117119), (186, 74629470), (261, 53184220), (279, 49752980), (290, 47865798), (310, 44777682), (348, 39888165), (372, 37314735), (435, 31910532), (465, 29851788), (522, 26592110), (558, 24876490), (580, 23932899), (620, 22388841), (870, 15955266), (899, 15440580), (930, 14925894), (1044, 13296055), (1116, 12438245), (1305, 10636844), (1395, 9950596), (1740, 7977633), (1798, 7720290), (1860, 7462947), (2610, 5318422), (2697, 5146860), (2790, 4975298), (3596, 3860145), (4495, 3088116), (5220, 2659211), (5394, 2573430), (5580, 2487649), (8091, 1715620), (8990, 1544058), (10788, 1286715), (13485, 1029372), (16182, 857810), (17980, 772029), (26970, 514686), (32364, 428905), (40455, 343124), (53940, 257343), (80910, 171562), (85781, 161820)]