28242460

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2203}}^1$

素因数の和:2853

約数の個数: 24

約数和(自身を含む): 59428656

約数和(自身を除く): 31186196

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2203, 2564, 3205, 4406, 6410, 8812, 11015, 12820, 22030, 44060, 1412123, 2824246, 5648492, 7060615, 14121230, 28242460]

約数ペア:

[(1, 28242460), (2, 14121230), (4, 7060615), (5, 5648492), (10, 2824246), (20, 1412123), (641, 44060), (1282, 22030), (2203, 12820), (2564, 11015), (3205, 8812), (4406, 6410)]