20561310

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 256

約数和(自身を含む): 72990720

約数和(自身を除く): 52429410

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 23, 27, 30, 33, 35, 42, 43, 45, 46, 54, 55, 63, 66, 69, 70, 77, 86, 90, 99, 105, 110, 115, 126, 129, 135, 138, 154, 161, 165, 189, 198, 207, 210, 215, 230, 231, 253, 258, 270, 297, 301, 315, 322, 330, 345, 378, 385, 387, 414, 430, 462, 473, 483, 495, 506, 594, 602, 621, 630, 645, 690, 693, 759, 770, 774, 805, 903, 945, 946, 966, 989, 990, 1035, 1155, 1161, 1242, 1265, 1290, 1386, 1419, 1449, 1485, 1505, 1518, 1610, 1771, 1806, 1890, 1935, 1978, 2070, 2079, 2277, 2310, 2322, 2365, 2415, 2530, 2709, 2838, 2898, 2967, 2970, 3010, 3105, 3311, 3465, 3542, 3795, 3870, 4158, 4257, 4347, 4515, 4554, 4730, 4830, 4945, 5313, 5418, 5805, 5934, 6210, 6622, 6831, 6923, 6930, 7095, 7245, 7590, 8127, 8514, 8694, 8855, 8901, 9030, 9890, 9933, 10395, 10626, 10879, 11385, 11610, 12771, 13545, 13662, 13846, 14190, 14490, 14835, 15939, 16254, 16555, 17710, 17802, 19866, 20769, 20790, 21285, 21735, 21758, 22770, 25542, 26565, 26703, 27090, 29670, 29799, 31878, 32637, 33110, 34155, 34615, 40635, 41538, 42570, 43470, 44505, 47817, 49665, 53130, 53406, 54395, 59598, 62307, 63855, 65274, 68310, 69230, 76153, 79695, 81270, 89010, 89397, 95634, 97911, 99330, 103845, 108790, 124614, 127710, 133515, 148995, 152306, 159390, 163185, 178794, 186921, 195822, 207690, 228459, 239085, 267030, 293733, 297990, 311535, 326370, 373842, 380765, 446985, 456918, 478170, 489555, 587466, 623070, 685377, 761530, 893970, 934605, 979110, 1142295, 1370754, 1468665, 1869210, 2056131, 2284590, 2937330, 3426885, 4112262, 6853770, 10280655, 20561310]

約数ペア:

[(1, 20561310), (2, 10280655), (3, 6853770), (5, 4112262), (6, 3426885), (7, 2937330), (9, 2284590), (10, 2056131), (11, 1869210), (14, 1468665), (15, 1370754), (18, 1142295), (21, 979110), (22, 934605), (23, 893970), (27, 761530), (30, 685377), (33, 623070), (35, 587466), (42, 489555), (43, 478170), (45, 456918), (46, 446985), (54, 380765), (55, 373842), (63, 326370), (66, 311535), (69, 297990), (70, 293733), (77, 267030), (86, 239085), (90, 228459), (99, 207690), (105, 195822), (110, 186921), (115, 178794), (126, 163185), (129, 159390), (135, 152306), (138, 148995), (154, 133515), (161, 127710), (165, 124614), (189, 108790), (198, 103845), (207, 99330), (210, 97911), (215, 95634), (230, 89397), (231, 89010), (253, 81270), (258, 79695), (270, 76153), (297, 69230), (301, 68310), (315, 65274), (322, 63855), (330, 62307), (345, 59598), (378, 54395), (385, 53406), (387, 53130), (414, 49665), (430, 47817), (462, 44505), (473, 43470), (483, 42570), (495, 41538), (506, 40635), (594, 34615), (602, 34155), (621, 33110), (630, 32637), (645, 31878), (690, 29799), (693, 29670), (759, 27090), (770, 26703), (774, 26565), (805, 25542), (903, 22770), (945, 21758), (946, 21735), (966, 21285), (989, 20790), (990, 20769), (1035, 19866), (1155, 17802), (1161, 17710), (1242, 16555), (1265, 16254), (1290, 15939), (1386, 14835), (1419, 14490), (1449, 14190), (1485, 13846), (1505, 13662), (1518, 13545), (1610, 12771), (1771, 11610), (1806, 11385), (1890, 10879), (1935, 10626), (1978, 10395), (2070, 9933), (2079, 9890), (2277, 9030), (2310, 8901), (2322, 8855), (2365, 8694), (2415, 8514), (2530, 8127), (2709, 7590), (2838, 7245), (2898, 7095), (2967, 6930), (2970, 6923), (3010, 6831), (3105, 6622), (3311, 6210), (3465, 5934), (3542, 5805), (3795, 5418), (3870, 5313), (4158, 4945), (4257, 4830), (4347, 4730), (4515, 4554)]