278315620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{5573}}^1$

素因数の和:5820

約数の個数: 48

約数和(自身を含む): 640519488

約数和(自身を除く): 362203868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 454, 908, 1135, 2270, 2497, 4540, 4994, 5573, 9988, 11146, 12485, 22292, 24970, 27865, 49940, 55730, 61303, 111460, 122606, 245212, 306515, 613030, 1226060, 1265071, 2530142, 5060284, 6325355, 12650710, 13915781, 25301420, 27831562, 55663124, 69578905, 139157810, 278315620]

約数ペア:

[(1, 278315620), (2, 139157810), (4, 69578905), (5, 55663124), (10, 27831562), (11, 25301420), (20, 13915781), (22, 12650710), (44, 6325355), (55, 5060284), (110, 2530142), (220, 1265071), (227, 1226060), (454, 613030), (908, 306515), (1135, 245212), (2270, 122606), (2497, 111460), (4540, 61303), (4994, 55730), (5573, 49940), (9988, 27865), (11146, 24970), (12485, 22292)]