1272982004

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{640333}}^1$

素因数の和:640415

約数の個数: 24

約数和(自身を含む): 2581826688

約数和(自身を除く): 1308844684

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 640333, 1280666, 2561332, 4482331, 8964662, 17929324, 45463643, 90927286, 181854572, 318245501, 636491002, 1272982004]

約数ペア:

[(1, 1272982004), (2, 636491002), (4, 318245501), (7, 181854572), (14, 90927286), (28, 45463643), (71, 17929324), (142, 8964662), (284, 4482331), (497, 2561332), (994, 1280666), (1988, 640333)]