641018

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:258

約数の個数: 24

約数和(自身を含む): 1160064

約数和(自身を除く): 519046

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 211, 217, 422, 434, 1477, 1519, 2954, 3038, 6541, 10339, 13082, 20678, 45787, 91574, 320509, 641018]

約数ペア:

[(1, 641018), (2, 320509), (7, 91574), (14, 45787), (31, 20678), (49, 13082), (62, 10339), (98, 6541), (211, 3038), (217, 2954), (422, 1519), (434, 1477)]