2018870820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{111049}}^1$

素因数の和:111165

約数の個数: 72

約数和(自身を含む): 6184596600

約数和(自身を除く): 4165725780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4545, 6060, 9090, 18180, 111049, 222098, 333147, 444196, 555245, 666294, 999441, 1110490, 1332588, 1665735, 1998882, 2220980, 3331470, 3997764, 4997205, 6662940, 9994410, 11215949, 19988820, 22431898, 33647847, 44863796, 56079745, 67295694, 100943541, 112159490, 134591388, 168239235, 201887082, 224318980, 336478470, 403774164, 504717705, 672956940, 1009435410, 2018870820]

約数ペア:

[(1, 2018870820), (2, 1009435410), (3, 672956940), (4, 504717705), (5, 403774164), (6, 336478470), (9, 224318980), (10, 201887082), (12, 168239235), (15, 134591388), (18, 112159490), (20, 100943541), (30, 67295694), (36, 56079745), (45, 44863796), (60, 33647847), (90, 22431898), (101, 19988820), (180, 11215949), (202, 9994410), (303, 6662940), (404, 4997205), (505, 3997764), (606, 3331470), (909, 2220980), (1010, 1998882), (1212, 1665735), (1515, 1332588), (1818, 1110490), (2020, 999441), (3030, 666294), (3636, 555245), (4545, 444196), (6060, 333147), (9090, 222098), (18180, 111049)]