78449980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{80051}}^1$

素因数の和:80074

約数の個数: 36

約数和(自身を含む): 191644488

約数和(自身を除く): 113194508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 80051, 160102, 320204, 400255, 560357, 800510, 1120714, 1601020, 2241428, 2801785, 3922499, 5603570, 7844998, 11207140, 15689996, 19612495, 39224990, 78449980]

約数ペア:

[(1, 78449980), (2, 39224990), (4, 19612495), (5, 15689996), (7, 11207140), (10, 7844998), (14, 5603570), (20, 3922499), (28, 2801785), (35, 2241428), (49, 1601020), (70, 1120714), (98, 800510), (140, 560357), (196, 400255), (245, 320204), (490, 160102), (980, 80051)]