7788402680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1890389}}^1$

素因数の和:1890503

約数の個数: 32

約数和(自身を含む): 17694050400

約数和(自身を除く): 9905647720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 1890389, 3780778, 7561556, 9451945, 15123112, 18903890, 37807780, 75615560, 194710067, 389420134, 778840268, 973550335, 1557680536, 1947100670, 3894201340, 7788402680]

約数ペア:

[(1, 7788402680), (2, 3894201340), (4, 1947100670), (5, 1557680536), (8, 973550335), (10, 778840268), (20, 389420134), (40, 194710067), (103, 75615560), (206, 37807780), (412, 18903890), (515, 15123112), (824, 9451945), (1030, 7561556), (2060, 3780778), (4120, 1890389)]