85915980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:304

約数の個数: 144

約数和(自身を含む): 273873600

約数和(自身を除く): 187957620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 109, 116, 145, 151, 174, 180, 218, 261, 290, 302, 327, 348, 435, 436, 453, 522, 545, 580, 604, 654, 755, 870, 906, 981, 1044, 1090, 1305, 1308, 1359, 1510, 1635, 1740, 1812, 1962, 2180, 2265, 2610, 2718, 3020, 3161, 3270, 3924, 4379, 4530, 4905, 5220, 5436, 6322, 6540, 6795, 8758, 9060, 9483, 9810, 12644, 13137, 13590, 15805, 16459, 17516, 18966, 19620, 21895, 26274, 27180, 28449, 31610, 32918, 37932, 39411, 43790, 47415, 49377, 52548, 56898, 63220, 65685, 65836, 78822, 82295, 87580, 94830, 98754, 113796, 131370, 142245, 148131, 157644, 164590, 189660, 197055, 197508, 246885, 262740, 284490, 296262, 329180, 394110, 477311, 493770, 568980, 592524, 740655, 788220, 954622, 987540, 1431933, 1481310, 1909244, 2386555, 2863866, 2962620, 4295799, 4773110, 5727732, 7159665, 8591598, 9546220, 14319330, 17183196, 21478995, 28638660, 42957990, 85915980]

約数ペア:

[(1, 85915980), (2, 42957990), (3, 28638660), (4, 21478995), (5, 17183196), (6, 14319330), (9, 9546220), (10, 8591598), (12, 7159665), (15, 5727732), (18, 4773110), (20, 4295799), (29, 2962620), (30, 2863866), (36, 2386555), (45, 1909244), (58, 1481310), (60, 1431933), (87, 987540), (90, 954622), (109, 788220), (116, 740655), (145, 592524), (151, 568980), (174, 493770), (180, 477311), (218, 394110), (261, 329180), (290, 296262), (302, 284490), (327, 262740), (348, 246885), (435, 197508), (436, 197055), (453, 189660), (522, 164590), (545, 157644), (580, 148131), (604, 142245), (654, 131370), (755, 113796), (870, 98754), (906, 94830), (981, 87580), (1044, 82295), (1090, 78822), (1305, 65836), (1308, 65685), (1359, 63220), (1510, 56898), (1635, 52548), (1740, 49377), (1812, 47415), (1962, 43790), (2180, 39411), (2265, 37932), (2610, 32918), (2718, 31610), (3020, 28449), (3161, 27180), (3270, 26274), (3924, 21895), (4379, 19620), (4530, 18966), (4905, 17516), (5220, 16459), (5436, 15805), (6322, 13590), (6540, 13137), (6795, 12644), (8758, 9810), (9060, 9483)]