7959140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 19286400

約数和(自身を除く): 11327260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 409, 556, 695, 818, 973, 1390, 1636, 1946, 2045, 2780, 2863, 3892, 4090, 4865, 5726, 8180, 9730, 11452, 14315, 19460, 28630, 56851, 57260, 113702, 227404, 284255, 397957, 568510, 795914, 1137020, 1591828, 1989785, 3979570, 7959140]

約数ペア:

[(1, 7959140), (2, 3979570), (4, 1989785), (5, 1591828), (7, 1137020), (10, 795914), (14, 568510), (20, 397957), (28, 284255), (35, 227404), (70, 113702), (139, 57260), (140, 56851), (278, 28630), (409, 19460), (556, 14315), (695, 11452), (818, 9730), (973, 8180), (1390, 5726), (1636, 4865), (1946, 4090), (2045, 3892), (2780, 2863)]