28415860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{569}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 65499840

約数和(自身を除く): 37083980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 454, 569, 908, 1135, 1138, 2270, 2276, 2497, 2845, 4540, 4994, 5690, 6259, 9988, 11380, 12485, 12518, 24970, 25036, 31295, 49940, 62590, 125180, 129163, 258326, 516652, 645815, 1291630, 1420793, 2583260, 2841586, 5683172, 7103965, 14207930, 28415860]

約数ペア:

[(1, 28415860), (2, 14207930), (4, 7103965), (5, 5683172), (10, 2841586), (11, 2583260), (20, 1420793), (22, 1291630), (44, 645815), (55, 516652), (110, 258326), (220, 129163), (227, 125180), (454, 62590), (569, 49940), (908, 31295), (1135, 25036), (1138, 24970), (2270, 12518), (2276, 12485), (2497, 11380), (2845, 9988), (4540, 6259), (4994, 5690)]