221243140

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{133279}}^1$

素因数の和:133371

約数の個数: 24

約数和(自身を含む): 470211840

約数和(自身を除く): 248968700

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 133279, 266558, 533116, 666395, 1332790, 2665580, 11062157, 22124314, 44248628, 55310785, 110621570, 221243140]

約数ペア:

[(1, 221243140), (2, 110621570), (4, 55310785), (5, 44248628), (10, 22124314), (20, 11062157), (83, 2665580), (166, 1332790), (332, 666395), (415, 533116), (830, 266558), (1660, 133279)]