207930020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{2221}}^1$

素因数の和:2412

約数の個数: 48

約数和(自身を含む): 453927936

約数和(自身を除く): 245997916

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 151, 155, 302, 310, 604, 620, 755, 1510, 2221, 3020, 4442, 4681, 8884, 9362, 11105, 18724, 22210, 23405, 44420, 46810, 68851, 93620, 137702, 275404, 335371, 344255, 670742, 688510, 1341484, 1377020, 1676855, 3353710, 6707420, 10396501, 20793002, 41586004, 51982505, 103965010, 207930020]

約数ペア:

[(1, 207930020), (2, 103965010), (4, 51982505), (5, 41586004), (10, 20793002), (20, 10396501), (31, 6707420), (62, 3353710), (124, 1676855), (151, 1377020), (155, 1341484), (302, 688510), (310, 670742), (604, 344255), (620, 335371), (755, 275404), (1510, 137702), (2221, 93620), (3020, 68851), (4442, 46810), (4681, 44420), (8884, 23405), (9362, 22210), (11105, 18724)]