66942020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107971}}^1$

素因数の和:108011

約数の個数: 24

約数和(自身を含む): 145114368

約数和(自身を除く): 78172348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 107971, 215942, 431884, 539855, 1079710, 2159420, 3347101, 6694202, 13388404, 16735505, 33471010, 66942020]

約数ペア:

[(1, 66942020), (2, 33471010), (4, 16735505), (5, 13388404), (10, 6694202), (20, 3347101), (31, 2159420), (62, 1079710), (124, 539855), (155, 431884), (310, 215942), (620, 107971)]