68635420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3527}}^1$

素因数の和:3682

約数の個数: 48

約数和(自身を含む): 165957120

約数和(自身を除く): 97321700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3527, 3892, 4865, 7054, 9730, 14108, 17635, 19460, 24689, 35270, 49378, 70540, 98756, 123445, 246890, 490253, 493780, 980506, 1961012, 2451265, 3431771, 4902530, 6863542, 9805060, 13727084, 17158855, 34317710, 68635420]

約数ペア:

[(1, 68635420), (2, 34317710), (4, 17158855), (5, 13727084), (7, 9805060), (10, 6863542), (14, 4902530), (20, 3431771), (28, 2451265), (35, 1961012), (70, 980506), (139, 493780), (140, 490253), (278, 246890), (556, 123445), (695, 98756), (973, 70540), (1390, 49378), (1946, 35270), (2780, 24689), (3527, 19460), (3892, 17635), (4865, 14108), (7054, 9730)]