890254820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:430

約数の個数: 144

約数和(自身を含む): 2337527808

約数和(自身を除く): 1447272988

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 191, 197, 260, 338, 364, 382, 394, 455, 676, 764, 788, 845, 910, 955, 985, 1183, 1337, 1379, 1690, 1820, 1910, 1970, 2366, 2483, 2561, 2674, 2758, 3380, 3820, 3940, 4732, 4966, 5122, 5348, 5516, 5915, 6685, 6895, 9932, 10244, 11830, 12415, 12805, 13370, 13790, 17381, 17927, 23660, 24830, 25610, 26740, 27580, 32279, 33293, 34762, 35854, 37627, 49660, 51220, 64558, 66586, 69524, 71708, 75254, 86905, 89635, 129116, 133172, 150508, 161395, 166465, 173810, 179270, 188135, 225953, 233051, 263389, 322790, 332930, 347620, 358540, 376270, 451906, 466102, 489151, 526778, 645580, 665860, 752540, 903812, 932204, 978302, 1053556, 1129765, 1165255, 1316945, 1956604, 2259530, 2330510, 2445755, 2633890, 3424057, 4519060, 4661020, 4891510, 5267780, 6358963, 6848114, 9783020, 12717926, 13696228, 17120285, 25435852, 31794815, 34240570, 44512741, 63589630, 68481140, 89025482, 127179260, 178050964, 222563705, 445127410, 890254820]

約数ペア:

[(1, 890254820), (2, 445127410), (4, 222563705), (5, 178050964), (7, 127179260), (10, 89025482), (13, 68481140), (14, 63589630), (20, 44512741), (26, 34240570), (28, 31794815), (35, 25435852), (52, 17120285), (65, 13696228), (70, 12717926), (91, 9783020), (130, 6848114), (140, 6358963), (169, 5267780), (182, 4891510), (191, 4661020), (197, 4519060), (260, 3424057), (338, 2633890), (364, 2445755), (382, 2330510), (394, 2259530), (455, 1956604), (676, 1316945), (764, 1165255), (788, 1129765), (845, 1053556), (910, 978302), (955, 932204), (985, 903812), (1183, 752540), (1337, 665860), (1379, 645580), (1690, 526778), (1820, 489151), (1910, 466102), (1970, 451906), (2366, 376270), (2483, 358540), (2561, 347620), (2674, 332930), (2758, 322790), (3380, 263389), (3820, 233051), (3940, 225953), (4732, 188135), (4966, 179270), (5122, 173810), (5348, 166465), (5516, 161395), (5915, 150508), (6685, 133172), (6895, 129116), (9932, 89635), (10244, 86905), (11830, 75254), (12415, 71708), (12805, 69524), (13370, 66586), (13790, 64558), (17381, 51220), (17927, 49660), (23660, 37627), (24830, 35854), (25610, 34762), (26740, 33293), (27580, 32279)]