20112120

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:394

約数の個数: 192

約数和(自身を含む): 78174720

約数和(自身を除く): 58062600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 56, 60, 63, 69, 70, 72, 84, 90, 92, 105, 115, 120, 126, 138, 140, 161, 168, 180, 184, 207, 210, 230, 252, 276, 280, 315, 322, 345, 347, 360, 414, 420, 460, 483, 504, 552, 630, 644, 690, 694, 805, 828, 840, 920, 966, 1035, 1041, 1260, 1288, 1380, 1388, 1449, 1610, 1656, 1735, 1932, 2070, 2082, 2415, 2429, 2520, 2760, 2776, 2898, 3123, 3220, 3470, 3864, 4140, 4164, 4830, 4858, 5205, 5796, 6246, 6440, 6940, 7245, 7287, 7981, 8280, 8328, 9660, 9716, 10410, 11592, 12145, 12492, 13880, 14490, 14574, 15615, 15962, 19320, 19432, 20820, 21861, 23943, 24290, 24984, 28980, 29148, 31230, 31924, 36435, 39905, 41640, 43722, 47886, 48580, 55867, 57960, 58296, 62460, 63848, 71829, 72870, 79810, 87444, 95772, 97160, 109305, 111734, 119715, 124920, 143658, 145740, 159620, 167601, 174888, 191544, 218610, 223468, 239430, 279335, 287316, 291480, 319240, 335202, 359145, 437220, 446936, 478860, 502803, 558670, 574632, 670404, 718290, 838005, 874440, 957720, 1005606, 1117340, 1340808, 1436580, 1676010, 2011212, 2234680, 2514015, 2873160, 3352020, 4022424, 5028030, 6704040, 10056060, 20112120]

約数ペア:

[(1, 20112120), (2, 10056060), (3, 6704040), (4, 5028030), (5, 4022424), (6, 3352020), (7, 2873160), (8, 2514015), (9, 2234680), (10, 2011212), (12, 1676010), (14, 1436580), (15, 1340808), (18, 1117340), (20, 1005606), (21, 957720), (23, 874440), (24, 838005), (28, 718290), (30, 670404), (35, 574632), (36, 558670), (40, 502803), (42, 478860), (45, 446936), (46, 437220), (56, 359145), (60, 335202), (63, 319240), (69, 291480), (70, 287316), (72, 279335), (84, 239430), (90, 223468), (92, 218610), (105, 191544), (115, 174888), (120, 167601), (126, 159620), (138, 145740), (140, 143658), (161, 124920), (168, 119715), (180, 111734), (184, 109305), (207, 97160), (210, 95772), (230, 87444), (252, 79810), (276, 72870), (280, 71829), (315, 63848), (322, 62460), (345, 58296), (347, 57960), (360, 55867), (414, 48580), (420, 47886), (460, 43722), (483, 41640), (504, 39905), (552, 36435), (630, 31924), (644, 31230), (690, 29148), (694, 28980), (805, 24984), (828, 24290), (840, 23943), (920, 21861), (966, 20820), (1035, 19432), (1041, 19320), (1260, 15962), (1288, 15615), (1380, 14574), (1388, 14490), (1449, 13880), (1610, 12492), (1656, 12145), (1735, 11592), (1932, 10410), (2070, 9716), (2082, 9660), (2415, 8328), (2429, 8280), (2520, 7981), (2760, 7287), (2776, 7245), (2898, 6940), (3123, 6440), (3220, 6246), (3470, 5796), (3864, 5205), (4140, 4858), (4164, 4830)]