128456418

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{403951}}^1$

素因数の和:404009

約数の個数: 16

約数和(自身を含む): 261760896

約数和(自身を除く): 133304478

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 403951, 807902, 1211853, 2423706, 21409403, 42818806, 64228209, 128456418]

約数ペア:

[(1, 128456418), (2, 64228209), (3, 42818806), (6, 21409403), (53, 2423706), (106, 1211853), (159, 807902), (318, 403951)]