81964440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2617}}^1$

素因数の和:2666

約数の個数: 128

約数和(自身を含む): 282744000

約数和(自身を除く): 200779560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 696, 783, 870, 1044, 1080, 1160, 1305, 1566, 1740, 2088, 2610, 2617, 3132, 3480, 3915, 5220, 5234, 6264, 7830, 7851, 10440, 10468, 13085, 15660, 15702, 20936, 23553, 26170, 31320, 31404, 39255, 47106, 52340, 62808, 70659, 75893, 78510, 94212, 104680, 117765, 141318, 151786, 157020, 188424, 227679, 235530, 282636, 303572, 314040, 353295, 379465, 455358, 471060, 565272, 607144, 683037, 706590, 758930, 910716, 942120, 1138395, 1366074, 1413180, 1517860, 1821432, 2049111, 2276790, 2732148, 2826360, 3035720, 3415185, 4098222, 4553580, 5464296, 6830370, 8196444, 9107160, 10245555, 13660740, 16392888, 20491110, 27321480, 40982220, 81964440]

約数ペア:

[(1, 81964440), (2, 40982220), (3, 27321480), (4, 20491110), (5, 16392888), (6, 13660740), (8, 10245555), (9, 9107160), (10, 8196444), (12, 6830370), (15, 5464296), (18, 4553580), (20, 4098222), (24, 3415185), (27, 3035720), (29, 2826360), (30, 2732148), (36, 2276790), (40, 2049111), (45, 1821432), (54, 1517860), (58, 1413180), (60, 1366074), (72, 1138395), (87, 942120), (90, 910716), (108, 758930), (116, 706590), (120, 683037), (135, 607144), (145, 565272), (174, 471060), (180, 455358), (216, 379465), (232, 353295), (261, 314040), (270, 303572), (290, 282636), (348, 235530), (360, 227679), (435, 188424), (522, 157020), (540, 151786), (580, 141318), (696, 117765), (783, 104680), (870, 94212), (1044, 78510), (1080, 75893), (1160, 70659), (1305, 62808), (1566, 52340), (1740, 47106), (2088, 39255), (2610, 31404), (2617, 31320), (3132, 26170), (3480, 23553), (3915, 20936), (5220, 15702), (5234, 15660), (6264, 13085), (7830, 10468), (7851, 10440)]