5490500

素因数分解:

$2^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 48

約数和(自身を含む): 12230400

約数和(自身を除く): 6739900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 139, 158, 250, 278, 316, 395, 500, 556, 695, 790, 1390, 1580, 1975, 2780, 3475, 3950, 6950, 7900, 9875, 10981, 13900, 17375, 19750, 21962, 34750, 39500, 43924, 54905, 69500, 109810, 219620, 274525, 549050, 1098100, 1372625, 2745250, 5490500]

約数ペア:

[(1, 5490500), (2, 2745250), (4, 1372625), (5, 1098100), (10, 549050), (20, 274525), (25, 219620), (50, 109810), (79, 69500), (100, 54905), (125, 43924), (139, 39500), (158, 34750), (250, 21962), (278, 19750), (316, 17375), (395, 13900), (500, 10981), (556, 9875), (695, 7900), (790, 6950), (1390, 3950), (1580, 3475), (1975, 2780)]