20251945

素因数分解:

$5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 28531008

約数和(自身を除く): 8279063

約数列:

[1, 5, 7, 35, 49, 131, 245, 631, 655, 917, 3155, 4417, 4585, 6419, 22085, 30919, 32095, 82661, 154595, 413305, 578627, 2893135, 4050389, 20251945]

約数ペア:

[(1, 20251945), (5, 4050389), (7, 2893135), (35, 578627), (49, 413305), (131, 154595), (245, 82661), (631, 32095), (655, 30919), (917, 22085), (3155, 6419), (4417, 4585)]