18688840

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7919}}^1$

素因数の和:7989

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 24079160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 7919, 15838, 31676, 39595, 63352, 79190, 158380, 316760, 467221, 934442, 1868884, 2336105, 3737768, 4672210, 9344420, 18688840]

約数ペア:

[(1, 18688840), (2, 9344420), (4, 4672210), (5, 3737768), (8, 2336105), (10, 1868884), (20, 934442), (40, 467221), (59, 316760), (118, 158380), (236, 79190), (295, 63352), (472, 39595), (590, 31676), (1180, 15838), (2360, 7919)]