31981896

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 96981300

約数和(自身を除く): 64999404

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 29, 34, 36, 51, 53, 58, 68, 72, 87, 102, 106, 116, 136, 153, 159, 174, 204, 212, 232, 261, 289, 306, 318, 348, 408, 424, 477, 493, 522, 578, 612, 636, 696, 867, 901, 954, 986, 1044, 1156, 1224, 1272, 1479, 1537, 1734, 1802, 1908, 1972, 2088, 2312, 2601, 2703, 2958, 3074, 3468, 3604, 3816, 3944, 4437, 4611, 5202, 5406, 5916, 6148, 6936, 7208, 8109, 8381, 8874, 9222, 10404, 10812, 11832, 12296, 13833, 15317, 16218, 16762, 17748, 18444, 20808, 21624, 25143, 26129, 27666, 30634, 32436, 33524, 35496, 36888, 45951, 50286, 52258, 55332, 61268, 64872, 67048, 75429, 78387, 91902, 100572, 104516, 110664, 122536, 137853, 150858, 156774, 183804, 201144, 209032, 235161, 275706, 301716, 313548, 367608, 444193, 470322, 551412, 603432, 627096, 888386, 940644, 1102824, 1332579, 1776772, 1881288, 2665158, 3553544, 3997737, 5330316, 7995474, 10660632, 15990948, 31981896]

約数ペア:

[(1, 31981896), (2, 15990948), (3, 10660632), (4, 7995474), (6, 5330316), (8, 3997737), (9, 3553544), (12, 2665158), (17, 1881288), (18, 1776772), (24, 1332579), (29, 1102824), (34, 940644), (36, 888386), (51, 627096), (53, 603432), (58, 551412), (68, 470322), (72, 444193), (87, 367608), (102, 313548), (106, 301716), (116, 275706), (136, 235161), (153, 209032), (159, 201144), (174, 183804), (204, 156774), (212, 150858), (232, 137853), (261, 122536), (289, 110664), (306, 104516), (318, 100572), (348, 91902), (408, 78387), (424, 75429), (477, 67048), (493, 64872), (522, 61268), (578, 55332), (612, 52258), (636, 50286), (696, 45951), (867, 36888), (901, 35496), (954, 33524), (986, 32436), (1044, 30634), (1156, 27666), (1224, 26129), (1272, 25143), (1479, 21624), (1537, 20808), (1734, 18444), (1802, 17748), (1908, 16762), (1972, 16218), (2088, 15317), (2312, 13833), (2601, 12296), (2703, 11832), (2958, 10812), (3074, 10404), (3468, 9222), (3604, 8874), (3816, 8381), (3944, 8109), (4437, 7208), (4611, 6936), (5202, 6148), (5406, 5916)]