87239800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{10639}}^1$

素因数の和:10696

約数の個数: 48

約数和(自身を含む): 207799200

約数和(自身を除く): 120559400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 4100, 8200, 10639, 21278, 42556, 53195, 85112, 106390, 212780, 265975, 425560, 436199, 531950, 872398, 1063900, 1744796, 2127800, 2180995, 3489592, 4361990, 8723980, 10904975, 17447960, 21809950, 43619900, 87239800]

約数ペア:

[(1, 87239800), (2, 43619900), (4, 21809950), (5, 17447960), (8, 10904975), (10, 8723980), (20, 4361990), (25, 3489592), (40, 2180995), (41, 2127800), (50, 1744796), (82, 1063900), (100, 872398), (164, 531950), (200, 436199), (205, 425560), (328, 265975), (410, 212780), (820, 106390), (1025, 85112), (1640, 53195), (2050, 42556), (4100, 21278), (8200, 10639)]