15660520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3659}}^1$

素因数の和:3777

約数の個数: 32

約数和(自身を含む): 35575200

約数和(自身を除く): 19914680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 3659, 4280, 7318, 14636, 18295, 29272, 36590, 73180, 146360, 391513, 783026, 1566052, 1957565, 3132104, 3915130, 7830260, 15660520]

約数ペア:

[(1, 15660520), (2, 7830260), (4, 3915130), (5, 3132104), (8, 1957565), (10, 1566052), (20, 783026), (40, 391513), (107, 146360), (214, 73180), (428, 36590), (535, 29272), (856, 18295), (1070, 14636), (2140, 7318), (3659, 4280)]