681543688

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{87557}}^1$

素因数の和:87709

約数の個数: 32

約数和(自身を含む): 1470974400

約数和(自身を除く): 789430712

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 3892, 7784, 87557, 175114, 350228, 612899, 700456, 1225798, 2451596, 4903192, 12170423, 24340846, 48681692, 85192961, 97363384, 170385922, 340771844, 681543688]

約数ペア:

[(1, 681543688), (2, 340771844), (4, 170385922), (7, 97363384), (8, 85192961), (14, 48681692), (28, 24340846), (56, 12170423), (139, 4903192), (278, 2451596), (556, 1225798), (973, 700456), (1112, 612899), (1946, 350228), (3892, 175114), (7784, 87557)]