256801636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{705499}}^1$

素因数の和:705523

約数の個数: 24

約数和(自身を含む): 553112000

約数和(自身を除く): 296310364

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 705499, 1410998, 2821996, 4938493, 9171487, 9876986, 18342974, 19753972, 36685948, 64200409, 128400818, 256801636]

約数ペア:

[(1, 256801636), (2, 128400818), (4, 64200409), (7, 36685948), (13, 19753972), (14, 18342974), (26, 9876986), (28, 9171487), (52, 4938493), (91, 2821996), (182, 1410998), (364, 705499)]