641320004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{15671}}^1$

素因数の和:16475

約数の個数: 24

約数和(自身を含む): 1210254528

約数和(自身を除く): 568934524

約数列:

[1, 2, 4, 13, 26, 52, 787, 1574, 3148, 10231, 15671, 20462, 31342, 40924, 62684, 203723, 407446, 814892, 12333077, 24666154, 49332308, 160330001, 320660002, 641320004]

約数ペア:

[(1, 641320004), (2, 320660002), (4, 160330001), (13, 49332308), (26, 24666154), (52, 12333077), (787, 814892), (1574, 407446), (3148, 203723), (10231, 62684), (15671, 40924), (20462, 31342)]