51571940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4139}}^1$

素因数の和:4244

約数の個数: 48

約数和(自身を含む): 125193600

約数和(自身を除く): 73621660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 4139, 6230, 8278, 12460, 16556, 20695, 28973, 41390, 57946, 82780, 115892, 144865, 289730, 368371, 579460, 736742, 1473484, 1841855, 2578597, 3683710, 5157194, 7367420, 10314388, 12892985, 25785970, 51571940]

約数ペア:

[(1, 51571940), (2, 25785970), (4, 12892985), (5, 10314388), (7, 7367420), (10, 5157194), (14, 3683710), (20, 2578597), (28, 1841855), (35, 1473484), (70, 736742), (89, 579460), (140, 368371), (178, 289730), (356, 144865), (445, 115892), (623, 82780), (890, 57946), (1246, 41390), (1780, 28973), (2492, 20695), (3115, 16556), (4139, 12460), (6230, 8278)]