26311960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 63180000

約数和(自身を除く): 36868040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 389, 445, 712, 760, 778, 890, 1556, 1691, 1780, 1945, 3112, 3382, 3560, 3890, 6764, 7391, 7780, 8455, 13528, 14782, 15560, 16910, 29564, 33820, 34621, 36955, 59128, 67640, 69242, 73910, 138484, 147820, 173105, 276968, 295640, 346210, 657799, 692420, 1315598, 1384840, 2631196, 3288995, 5262392, 6577990, 13155980, 26311960]

約数ペア:

[(1, 26311960), (2, 13155980), (4, 6577990), (5, 5262392), (8, 3288995), (10, 2631196), (19, 1384840), (20, 1315598), (38, 692420), (40, 657799), (76, 346210), (89, 295640), (95, 276968), (152, 173105), (178, 147820), (190, 138484), (356, 73910), (380, 69242), (389, 67640), (445, 59128), (712, 36955), (760, 34621), (778, 33820), (890, 29564), (1556, 16910), (1691, 15560), (1780, 14782), (1945, 13528), (3112, 8455), (3382, 7780), (3560, 7391), (3890, 6764)]