81357210

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:450

約数の個数: 160

約数和(自身を含む): 249651072

約数和(自身を除く): 168293862

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 23, 27, 30, 33, 45, 46, 54, 55, 66, 69, 81, 90, 99, 110, 115, 135, 138, 162, 165, 198, 207, 230, 253, 270, 297, 330, 345, 397, 405, 414, 495, 506, 594, 621, 690, 759, 794, 810, 891, 990, 1035, 1191, 1242, 1265, 1485, 1518, 1782, 1863, 1985, 2070, 2277, 2382, 2530, 2970, 3105, 3573, 3726, 3795, 3970, 4367, 4455, 4554, 5955, 6210, 6831, 7146, 7590, 8734, 8910, 9131, 9315, 10719, 11385, 11910, 13101, 13662, 17865, 18262, 18630, 20493, 21438, 21835, 22770, 26202, 27393, 32157, 34155, 35730, 39303, 40986, 43670, 45655, 53595, 54786, 64314, 65505, 68310, 78606, 82179, 91310, 100441, 102465, 107190, 117909, 131010, 136965, 160785, 164358, 196515, 200882, 204930, 235818, 246537, 273930, 301323, 321570, 353727, 393030, 410895, 493074, 502205, 589545, 602646, 707454, 739611, 821790, 903969, 1004410, 1179090, 1232685, 1479222, 1506615, 1768635, 1807938, 2465370, 2711907, 3013230, 3537270, 3698055, 4519845, 5423814, 7396110, 8135721, 9039690, 13559535, 16271442, 27119070, 40678605, 81357210]

約数ペア:

[(1, 81357210), (2, 40678605), (3, 27119070), (5, 16271442), (6, 13559535), (9, 9039690), (10, 8135721), (11, 7396110), (15, 5423814), (18, 4519845), (22, 3698055), (23, 3537270), (27, 3013230), (30, 2711907), (33, 2465370), (45, 1807938), (46, 1768635), (54, 1506615), (55, 1479222), (66, 1232685), (69, 1179090), (81, 1004410), (90, 903969), (99, 821790), (110, 739611), (115, 707454), (135, 602646), (138, 589545), (162, 502205), (165, 493074), (198, 410895), (207, 393030), (230, 353727), (253, 321570), (270, 301323), (297, 273930), (330, 246537), (345, 235818), (397, 204930), (405, 200882), (414, 196515), (495, 164358), (506, 160785), (594, 136965), (621, 131010), (690, 117909), (759, 107190), (794, 102465), (810, 100441), (891, 91310), (990, 82179), (1035, 78606), (1191, 68310), (1242, 65505), (1265, 64314), (1485, 54786), (1518, 53595), (1782, 45655), (1863, 43670), (1985, 40986), (2070, 39303), (2277, 35730), (2382, 34155), (2530, 32157), (2970, 27393), (3105, 26202), (3573, 22770), (3726, 21835), (3795, 21438), (3970, 20493), (4367, 18630), (4455, 18262), (4554, 17865), (5955, 13662), (6210, 13101), (6831, 11910), (7146, 11385), (7590, 10719), (8734, 9315), (8910, 9131)]