8109140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31189}}^1$

素因数の和:31211

約数の個数: 24

約数和(自身を含む): 18339720

約数和(自身を除く): 10230580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31189, 62378, 124756, 155945, 311890, 405457, 623780, 810914, 1621828, 2027285, 4054570, 8109140]

約数ペア:

[(1, 8109140), (2, 4054570), (4, 2027285), (5, 1621828), (10, 810914), (13, 623780), (20, 405457), (26, 311890), (52, 155945), (65, 124756), (130, 62378), (260, 31189)]