7840580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 18156096

約数和(自身を除く): 10315516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 227, 314, 454, 628, 785, 908, 1135, 1570, 1727, 2270, 2497, 3140, 3454, 4540, 4994, 6908, 8635, 9988, 12485, 17270, 24970, 34540, 35639, 49940, 71278, 142556, 178195, 356390, 392029, 712780, 784058, 1568116, 1960145, 3920290, 7840580]

約数ペア:

[(1, 7840580), (2, 3920290), (4, 1960145), (5, 1568116), (10, 784058), (11, 712780), (20, 392029), (22, 356390), (44, 178195), (55, 142556), (110, 71278), (157, 49940), (220, 35639), (227, 34540), (314, 24970), (454, 17270), (628, 12485), (785, 9988), (908, 8635), (1135, 6908), (1570, 4994), (1727, 4540), (2270, 3454), (2497, 3140)]