19998301345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{148471}}^1$

素因数の和:148597

約数の個数: 32

約数和(自身を含む): 27366359040

約数和(自身を除く): 7368057695

約数列:

[1, 5, 11, 31, 55, 79, 155, 341, 395, 869, 1705, 2449, 4345, 12245, 26939, 134695, 148471, 742355, 1633181, 4602601, 8165905, 11729209, 23013005, 50628611, 58646045, 129021299, 253143055, 363605479, 645106495, 1818027395, 3999660269, 19998301345]

約数ペア:

[(1, 19998301345), (5, 3999660269), (11, 1818027395), (31, 645106495), (55, 363605479), (79, 253143055), (155, 129021299), (341, 58646045), (395, 50628611), (869, 23013005), (1705, 11729209), (2449, 8165905), (4345, 4602601), (12245, 1633181), (26939, 742355), (134695, 148471)]