640750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{233}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 1314144

約数和(自身を除く): 673394

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 233, 250, 275, 466, 550, 1165, 1375, 2330, 2563, 2750, 5126, 5825, 11650, 12815, 25630, 29125, 58250, 64075, 128150, 320375, 640750]

約数ペア:

[(1, 640750), (2, 320375), (5, 128150), (10, 64075), (11, 58250), (22, 29125), (25, 25630), (50, 12815), (55, 11650), (110, 5825), (125, 5126), (233, 2750), (250, 2563), (275, 2330), (466, 1375), (550, 1165)]