78195320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279269}}^1$

素因数の和:279287

約数の個数: 32

約数和(自身を含む): 201074400

約数和(自身を除く): 122879080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279269, 558538, 1117076, 1396345, 1954883, 2234152, 2792690, 3909766, 5585380, 7819532, 9774415, 11170760, 15639064, 19548830, 39097660, 78195320]

約数ペア:

[(1, 78195320), (2, 39097660), (4, 19548830), (5, 15639064), (7, 11170760), (8, 9774415), (10, 7819532), (14, 5585380), (20, 3909766), (28, 2792690), (35, 2234152), (40, 1954883), (56, 1396345), (70, 1117076), (140, 558538), (280, 279269)]