13278800

素因数分解:

$2^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:480

約数の個数: 60

約数和(自身を含む): 32347260

約数和(自身を除く): 19068460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 178, 200, 356, 373, 400, 445, 712, 746, 890, 1424, 1492, 1780, 1865, 2225, 2984, 3560, 3730, 4450, 5968, 7120, 7460, 8900, 9325, 14920, 17800, 18650, 29840, 33197, 35600, 37300, 66394, 74600, 132788, 149200, 165985, 265576, 331970, 531152, 663940, 829925, 1327880, 1659850, 2655760, 3319700, 6639400, 13278800]

約数ペア:

[(1, 13278800), (2, 6639400), (4, 3319700), (5, 2655760), (8, 1659850), (10, 1327880), (16, 829925), (20, 663940), (25, 531152), (40, 331970), (50, 265576), (80, 165985), (89, 149200), (100, 132788), (178, 74600), (200, 66394), (356, 37300), (373, 35600), (400, 33197), (445, 29840), (712, 18650), (746, 17800), (890, 14920), (1424, 9325), (1492, 8900), (1780, 7460), (1865, 7120), (2225, 5968), (2984, 4450), (3560, 3730)]