65574580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{379}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 142107840

約数和(自身を除く): 76533260

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 211, 379, 410, 422, 758, 820, 844, 1055, 1516, 1895, 2110, 3790, 4220, 7580, 8651, 15539, 17302, 31078, 34604, 43255, 62156, 77695, 79969, 86510, 155390, 159938, 173020, 310780, 319876, 399845, 799690, 1599380, 3278729, 6557458, 13114916, 16393645, 32787290, 65574580]

約数ペア:

[(1, 65574580), (2, 32787290), (4, 16393645), (5, 13114916), (10, 6557458), (20, 3278729), (41, 1599380), (82, 799690), (164, 399845), (205, 319876), (211, 310780), (379, 173020), (410, 159938), (422, 155390), (758, 86510), (820, 79969), (844, 77695), (1055, 62156), (1516, 43255), (1895, 34604), (2110, 31078), (3790, 17302), (4220, 15539), (7580, 8651)]