641309872

素因数分解:

$2^4\times 7^1\times {\mathrm{5725981}}^1$

素因数の和:5725996

約数の個数: 20

約数和(自身を含む): 1420043536

約数和(自身を除く): 778733664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5725981, 11451962, 22903924, 40081867, 45807848, 80163734, 91615696, 160327468, 320654936, 641309872]

約数ペア:

[(1, 641309872), (2, 320654936), (4, 160327468), (7, 91615696), (8, 80163734), (14, 45807848), (16, 40081867), (28, 22903924), (56, 11451962), (112, 5725981)]