87920920

素因数分解:

$2^3\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{2011}}^1$

素因数の和:3115

約数の個数: 32

約数和(自身を含む): 198101520

約数和(自身を除く): 110180600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1093, 2011, 2186, 4022, 4372, 5465, 8044, 8744, 10055, 10930, 16088, 20110, 21860, 40220, 43720, 80440, 2198023, 4396046, 8792092, 10990115, 17584184, 21980230, 43960460, 87920920]

約数ペア:

[(1, 87920920), (2, 43960460), (4, 21980230), (5, 17584184), (8, 10990115), (10, 8792092), (20, 4396046), (40, 2198023), (1093, 80440), (2011, 43720), (2186, 40220), (4022, 21860), (4372, 20110), (5465, 16088), (8044, 10930), (8744, 10055)]