68910640

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6197}}^1$

素因数の和:6349

約数の個数: 40

約数和(自身を含む): 161395920

約数和(自身を除く): 92485280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 6197, 11120, 12394, 24788, 30985, 49576, 61970, 99152, 123940, 247880, 495760, 861383, 1722766, 3445532, 4306915, 6891064, 8613830, 13782128, 17227660, 34455320, 68910640]

約数ペア:

[(1, 68910640), (2, 34455320), (4, 17227660), (5, 13782128), (8, 8613830), (10, 6891064), (16, 4306915), (20, 3445532), (40, 1722766), (80, 861383), (139, 495760), (278, 247880), (556, 123940), (695, 99152), (1112, 61970), (1390, 49576), (2224, 30985), (2780, 24788), (5560, 12394), (6197, 11120)]