665658620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{31193}}^1$

素因数の和:31310

約数の個数: 48

約数和(自身を含む): 1540734048

約数和(自身を除く): 875075428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1940, 2134, 4268, 5335, 10670, 21340, 31193, 62386, 124772, 155965, 311930, 343123, 623860, 686246, 1372492, 1715615, 3025721, 3431230, 6051442, 6862460, 12102884, 15128605, 30257210, 33282931, 60514420, 66565862, 133131724, 166414655, 332829310, 665658620]

約数ペア:

[(1, 665658620), (2, 332829310), (4, 166414655), (5, 133131724), (10, 66565862), (11, 60514420), (20, 33282931), (22, 30257210), (44, 15128605), (55, 12102884), (97, 6862460), (110, 6051442), (194, 3431230), (220, 3025721), (388, 1715615), (485, 1372492), (970, 686246), (1067, 623860), (1940, 343123), (2134, 311930), (4268, 155965), (5335, 124772), (10670, 62386), (21340, 31193)]