906177025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{18713}}^1$

素因数の和:18885

約数の個数: 24

約数和(自身を含む): 1218281400

約数和(自身を除く): 312104375

約数列:

[1, 5, 13, 25, 65, 149, 325, 745, 1937, 3725, 9685, 18713, 48425, 93565, 243269, 467825, 1216345, 2788237, 6081725, 13941185, 36247081, 69705925, 181235405, 906177025]

約数ペア:

[(1, 906177025), (5, 181235405), (13, 69705925), (25, 36247081), (65, 13941185), (149, 6081725), (325, 2788237), (745, 1216345), (1937, 467825), (3725, 243269), (9685, 93565), (18713, 48425)]