222503440

素因数分解:

$2^4\times 5^1\times {\mathrm{2781293}}^1$

素因数の和:2781306

約数の個数: 20

約数和(自身を含む): 517320684

約数和(自身を除く): 294817244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2781293, 5562586, 11125172, 13906465, 22250344, 27812930, 44500688, 55625860, 111251720, 222503440]

約数ペア:

[(1, 222503440), (2, 111251720), (4, 55625860), (5, 44500688), (8, 27812930), (10, 22250344), (16, 13906465), (20, 11125172), (40, 5562586), (80, 2781293)]