840456428

素因数分解:

$2^2\times 7^2\times {\mathrm{4288043}}^1$

素因数の和:4288061

約数の個数: 18

約数和(自身を含む): 1710929556

約数和(自身を除く): 870473128

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 4288043, 8576086, 17152172, 30016301, 60032602, 120065204, 210114107, 420228214, 840456428]

約数ペア:

[(1, 840456428), (2, 420228214), (4, 210114107), (7, 120065204), (14, 60032602), (28, 30016301), (49, 17152172), (98, 8576086), (196, 4288043)]