195800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 502200

約数和(自身を除く): 306400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 89, 100, 110, 178, 200, 220, 275, 356, 440, 445, 550, 712, 890, 979, 1100, 1780, 1958, 2200, 2225, 3560, 3916, 4450, 4895, 7832, 8900, 9790, 17800, 19580, 24475, 39160, 48950, 97900, 195800]

約数ペア:

[(1, 195800), (2, 97900), (4, 48950), (5, 39160), (8, 24475), (10, 19580), (11, 17800), (20, 9790), (22, 8900), (25, 7832), (40, 4895), (44, 4450), (50, 3916), (55, 3560), (88, 2225), (89, 2200), (100, 1958), (110, 1780), (178, 1100), (200, 979), (220, 890), (275, 712), (356, 550), (440, 445)]